Maximum Fitness Inc v. Studio Physique LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Maximum Fitness Incorporated (Oregon) and Lagree Technologies, Inc. (California)
  • Defendant: Studio Physique LLC (Florida) and Christine Field (Florida)
  • Plaintiff's Counsel: Shumaker, Loop & Kendrick, LLP
• Case Identification: Maximum Fitness Incorporated v. Studio Physique LLC, 8:26-cv-01835, M.D. Fla., 06/24/2026
• Venue Allegations: Venue is alleged to be proper as Defendants reside in the judicial district, have committed the alleged acts of infringement in the district, and maintain a regular and established place of business there.
• Core Dispute: Plaintiffs allege that Defendants, a former licensee and its founder, are directly and indirectly infringing twenty-three patents relating to exercise machine technology by importing and using "knock-off" machines after repudiating their license.
• Technical Context: The technology involves high-intensity, low-impact exercise machines, known commercially as the Megaformer®, which utilize a moving carriage and an adjustable tension system to provide resistance training inspired by Pilates and body-building techniques.
• Key Procedural History: Plaintiffs allege that Defendant Studio Physique is a former licensee of the patented technology. After terminating the license, Defendants allegedly purchased and began using infringing "knock-off" machines. Plaintiffs sent a cease-and-desist letter on September 29, 2025. The parties are also involved in separate litigation in the Central District of California concerning trademark infringement and breach of license, which Plaintiffs contend provided Defendants with additional notice of the asserted patents.

Case Timeline

Date	Event
2006-00-00	Plaintiff's founder, Sebastien Lagree, released his first machine, the Proformer®
2012-10-29	Earliest Priority Date for multiple asserted patents
2015-02-10	Studio Physique entered a License Agreement with Lagree Fitness, Inc.
2016-03-15	Issue Date for U.S. Patent No. 9,283,422
2016-08-16	Issue Date for U.S. Patent No. 9,415,253
2016-10-25	Issue Date for U.S. Patent No. 9,474,927
2016-11-22	Issue Date for U.S. Patent No. 9,498,667
2017-01-31	Issue Date for U.S. Patent No. 9,555,282
2017-03-28	Issue Date for U.S. Patent No. 9,604,095
2017-05-16	Issue Date for U.S. Patent No. 9,649,527
2017-08-29	Issue Date for U.S. Patent No. 9,744,395
2018-01-16	Issue Date for U.S. Patent No. 9,868,010; U.S. Patent No. 9,868,011
2018-05-29	Issue Date for U.S. Patent No. 9,981,156
2018-07-17	Issue Date for U.S. Patent No. 10,022,577
2018-11-06	Issue Date for U.S. Patent No. 10,118,067
2018-12-04	Issue Date for U.S. Patent No. 10,143,882
2018-12-18	Issue Date for U.S. Patent No. 10,155,129
2019-02-12	Issue Date for U.S. Patent No. 10,201,724
2020-07-21	Issue Date for U.S. Patent No. 10,716,964
2020-10-06	Issue Date for U.S. Patent No. 10,792,528
2020-12-01	Issue Date for U.S. Patent No. 10,850,155
2022-05-03	Issue Date for U.S. Patent No. 11,318,340; U.S. Patent No. 11,318,346
2022-07-26	Issue Date for U.S. Patent No. 11,395,936
2023-11-28	Issue Date for U.S. Patent No. 11,826,605
2025-07-00	Defendants allegedly purchased infringing "Accused Machines"
2025-08-22	Defendants promoted "upgraded Megas" on Instagram
2025-08-25	Accused Machines allegedly delivered to Defendants' facility
2025-09-11	Plaintiffs' representatives confirmed Accused Machines are copies
2025-09-29	Plaintiffs sent cease-and-desist letter to Defendants
2025-12-23	First Amended Complaint filed in related California litigation
2026-06-24	Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

Full analysis is provided for the first two of the twenty-three patents asserted in the complaint.

U.S. Patent No. 9,744,395 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

The Invention Explained

• Problem Addressed: The patent describes issues with conventional Pilates machines where tension springs are exposed when the user moves the platform, creating aesthetic, noise, and safety concerns (e.g., accidental engagement) and preventing use of the space under the platform for storage '395 Patent, col. 1:52-2:6
• The Patented Solution: The invention is a tension system for an exercise machine that uses a plurality of pulleys and tension devices (e.g., springs) to apply a selective tension force to a movable platform '395 Patent, abstract The pulleys are preferably positioned beneath the platform when it is in its initial position, keeping the tension system contained and addressing the problems of the prior art '395 Patent, col. 6:29-35 A "selection member" attached to the carriage allows a user to selectively engage or disengage tension devices to adjust the workout resistance '395 Patent, col. 7:8-15
• Technical Importance: This design aims to improve the safety, aesthetics, and user-friendliness of resistance-based exercise machines by containing the tension mechanism and providing an intuitive way to adjust resistance levels.

Key Claims at a Glance

• The complaint asserts independent claim 1, along with dependent claims 16 and 20 Compl. ¶62
• Independent Claim 1 of the '395 patent recites:
  • An exercise machine comprising a frame, a first end platform, and a movable carriage.
  • A "selection member" attached to the carriage near its first end, which includes a first and second slot.
  • A first tension device connected to the frame, including a "first member" wider than the first slot, adapted for selective connection to the selection member.
  • A second tension device connected to the frame, including a "second member" wider than the second slot, adapted for selective connection.
  • The selection member is configured for "repeated connection and disconnection" of the tension devices during an exercise session.
• The complaint reserves the right to assert additional claims Compl. ¶62

U.S. Patent No. 9,868,010 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

The Invention Explained

• Problem Addressed: The '010 patent, which is a continuation of the application leading to the '395 patent, addresses the same problems: exposed tension springs on exercise machines that are noisy, potentially unsafe, and aesthetically unpleasing '010 Patent, col. 1:52-2:6
• The Patented Solution: The solution is materially the same as in the '395 patent: a tension assembly using pulleys and selectively engageable tension devices to apply a variable resistance to a movable platform '010 Patent, abstract The system is designed to be housed under the platform, and a user can adjust the resistance by engaging or disengaging tension devices via a "selection member" on the carriage '010 Patent, col. 2:13-26 '010 Patent, col. 7:8-15
• Technical Importance: This patent continues to refine the technical solution for a safer and more user-friendly resistance adjustment mechanism on exercise machines.

Key Claims at a Glance

• The complaint asserts independent claim 1, along with dependent claims 19 and 20 Compl. ¶79
• Independent Claim 1 of the '010 patent recites:
  • An exercise machine with a frame, first end platform, and a movable carriage.
  • A "selection member" attached to the carriage near its first edge, which includes a first and second slot.
  • A first tension device connected to the frame with a "first member" adapted for selective connection to the selection member.
  • A second tension device connected to the frame with a "second member" for selective connection.
  • The claim requires that when a tension device is received within its slot, at least a portion of its member extends "outwardly past the first edge of the carriage."
  • The selection member is configured for repeated connection and disconnection during an exercise session.
• The complaint reserves the right to assert additional claims Compl. ¶79
  The complaint asserts twenty-one additional patents. These are summarized below.

U.S. Patent No. 10,022,577 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: The '577 patent, a continuation of the family including the '395 and '010 patents, describes a tension device support system for a Pilates-style exercise machine, focusing on a selectable tension assembly connected to a movable platform '577 Patent, abstract
• Asserted Claims: Independent claims 1, 17, and 18 Compl. ¶96
• Accused Features: The "Accused Machines" are alleged to infringe by incorporating the patented tension device systems and related structures Compl. ¶¶32, 96-97

U.S. Patent No. 10,155,129 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: The '129 patent, also in the same family, discloses a Pilates machine tension system with a frame, movable carriage, and a selection member for adjusting tension by repeatedly connecting and disconnecting tension devices during a workout '129 Patent, abstract '129 Patent, claim 1
• Asserted Claims: Independent claims 1, 24, and 27 Compl. ¶113
• Accused Features: The "Accused Machines" are alleged to infringe by embodying the patented tension adjustment and carriage assembly inventions Compl. ¶¶32, 113-114

U.S. Patent No. 10,792,528 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: This patent continues the description of a Pilates machine tension device support system featuring a frame, movable platform, and a tension assembly with pulleys and selectable tension members for adjusting workout resistance '528 Patent, abstract
• Asserted Claims: Independent claims 1, 31, 35, 44, and 54 Compl. ¶130
• Accused Features: The "Accused Machines" are alleged to embody the patented tension device systems Compl. ¶¶32, 130-131

U.S. Patent No. 11,318,340 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: This patent discloses a tension device support system for a Pilates machine, including a frame, a movable platform, and a tension assembly comprised of pulleys and selectable tension devices to provide variable resistance '340 Patent, abstract
• Asserted Claims: Independent claims 1, 12, and 19 Compl. ¶147
• Accused Features: The "Accused Machines" are alleged to infringe by incorporating the patented tension systems and carriage assemblies Compl. ¶¶32, 147-148

U.S. Patent No. 9,283,422 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: The '422 patent, an early patent in the asserted family, describes a tension device support system for providing a tension force to a movable platform of an exercise machine, using a system of pulleys and selectable tension members '422 Patent, abstract
• Asserted Claims: Independent claims 1, 21, and 24 Compl. ¶164
• Accused Features: The "Accused Machines" are alleged to infringe by using the patented tension device technology Compl. ¶¶32, 164-165

U.S. Patent No. 9,474,927 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: A continuation of the '422 patent, the '927 patent further details a tension device support system with pulleys and selectable tension members for providing adjustable resistance to a movable exercise platform '927 Patent, abstract
• Asserted Claims: Independent claims 1, 19, and 20 Compl. ¶181
• Accused Features: The "Accused Machines" are alleged to embody the patented tension device technology Compl. ¶¶32, 181-182

U.S. Patent No. 9,555,282 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: This patent describes a tension device support system for an exercise machine, including a frame, movable platform, and a tension assembly with pulleys and selectable tension members to adjust resistance '282 Patent, abstract
• Asserted Claims: Independent claims 1, 19, and 20 Compl. ¶198
• Accused Features: The "Accused Machines" are alleged to incorporate the patented tension device and carriage assembly technology Compl. ¶¶32, 198-199

U.S. Patent No. 9,649,527 - PILATES MACHINE TENSION DEVICE SUPPORT SYSTEM

• Technology Synopsis: This patent discloses an exercise machine tension device system with a frame, a movable platform, and a tension assembly using pulleys and selectable tension devices to provide adjustable resistance '527 Patent, abstract
• Asserted Claims: Independent claims 1, 19, and 20 Compl. ¶215
• Accused Features: The "Accused Machines" are alleged to embody the patented tension device system Compl. ¶¶32, 215-216

U.S. Patent No. 11,826,605 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: The '605 patent describes a handle system for an exercise machine carriage, providing various handles for a user to grasp, thereby expanding the types of exercises that can be performed '605 Patent, abstract
• Asserted Claims: Independent claims 1, 11, and 20 Compl. ¶232
• Accused Features: The "Accused Machines" are alleged to incorporate the patented carriage handle systems Compl. ¶¶32, 232-233

U.S. Patent No. 9,415,253 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: This patent discloses a handle system for an exercise machine carriage, including handles that allow a user to perform exercises while positioned partially or entirely off the main carriage '253 Patent, abstract '253 Patent, col. 1:44-53
• Asserted Claims: Independent claims 1 and 28 Compl. ¶249
• Accused Features: The "Accused Machines" are alleged to embody the patented carriage handle systems Compl. ¶¶32, 249-250

U.S. Patent No. 9,498,667 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: This patent describes a carriage handle system for an exercise machine that provides handles for an exerciser to grasp, expanding the types of exercises that can be performed, including those where the user is not fully on the machine '667 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶266
• Accused Features: The "Accused Machines" are alleged to embody the patented carriage handle systems Compl. ¶¶32, 266-267

U.S. Patent No. 9,604,095 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: This patent describes a handle system for an exercise machine carriage that expands the types of performable exercises by providing various grasping points for the user '095 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶283
• Accused Features: The "Accused Machines" are alleged to infringe by incorporating the patented handle systems Compl. ¶¶32, 283-284

U.S. Patent No. 10,716,964 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: The '964 patent discloses a carriage handle system for an exercise machine to expand the types of exercises a user can perform, including handles on the side of the carriage '964 Patent, abstract
• Asserted Claims: Independent claims 1 and 20 Compl. ¶300
• Accused Features: The "Accused Machines" are alleged to infringe by embodying the patented carriage and handle systems Compl. ¶¶32, 300-301

U.S. Patent No. 11,395,936 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: This patent describes a handle system for an exercise machine carriage that provides various grasping points for a user, expanding the available exercises '936 Patent, abstract
• Asserted Claims: Independent claims 1 and 20 Compl. ¶317
• Accused Features: The "Accused Machines" are alleged to embody the patented carriage and handle systems Compl. ¶¶32, 317-318

U.S. Patent No. 10,118,067 - EXERCISE MACHINE CARRIAGE HANDLE SYSTEM

• Technology Synopsis: The '067 patent discloses a handle system for an exercise machine carriage that provides handles for an exerciser to grasp, allowing for a wider variety of exercises to be performed '067 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶334
• Accused Features: The "Accused Machines" are alleged to embody the patented carriage handle system Compl. ¶¶32, 334-335

U.S. Patent No. 9,868,011 - EXERCISE MACHINE RESISTANCE ADJUSTMENT SYSTEM

• Technology Synopsis: This patent describes a system for adjusting exercise resistance by changing one's body position on the carriage, which has various projections for hands or feet, thereby altering the leverage and effective resistance without stopping the exercise '011 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶351
• Accused Features: The "Accused Machines" are alleged to embody the patented resistance adjustment system Compl. ¶¶32, 351-352

U.S. Patent No. 10,201,724 - EXERCISE MACHINE RESISTANCE ADJUSTMENT SYSTEM

• Technology Synopsis: This patent discloses a system for adjusting workout resistance by repositioning hands or feet among various projections on the exercise machine's carriage, thereby changing the force required to move the carriage '724 Patent, abstract
• Asserted Claims: Independent claims 1 and 19 Compl. ¶368
• Accused Features: The "Accused Machines" are alleged to embody the patented resistance adjustment system Compl. ¶¶32, 368-369

U.S. Patent No. 9,981,156 - EXERCISE MACHINE WITH MULTIPLE CONTACT SURFACES

• Technology Synopsis: The '156 patent describes an exercise machine with multiple secondary support platforms at various planes and angles, which also serve as handles, to provide a wider range of ergonomic positions for exercises '156 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶385
• Accused Features: The "Accused Machines" are alleged to embody the patented multiple contact surfaces Compl. ¶¶32, 385-386

U.S. Patent No. 10,143,882 - EXERCISE MACHINE WITH MULTIPLE CONTACT SURFACES

• Technology Synopsis: This patent discloses an exercise machine with multiple contact surfaces providing secondary platforms at various positions relative to the main carriage, serving as both supports and handles to expand exercise options '882 Patent, abstract
• Asserted Claims: Independent claims 1, 35, and 46 Compl. ¶402
• Accused Features: The "Accused Machines" are alleged to embody the patented structures with multiple contact surfaces Compl. ¶¶32, 402-403

U.S. Patent No. 10,850,155 - EXERCISE MACHINE WITH MULTIPLE CONTACT SURFACES

• Technology Synopsis: This patent describes an exercise machine with multiple contact surfaces positioned at various planes relative to the main platform, serving as secondary supports and handles to increase the variety of possible exercises '155 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶419
• Accused Features: The "Accused Machines" are alleged to embody the patented structures with multiple contact surfaces Compl. ¶¶32, 419-420

U.S. Patent No. 11,318,346 - EXERCISE MACHINE WITH MULTIPLE CONTACT SURFACES

• Technology Synopsis: This patent discloses an exercise machine with multiple contact surfaces providing secondary exercise platforms at various planes relative to the primary carriage, which also serve as handles for performing exercises '346 Patent, abstract
• Asserted Claims: Independent claim 1 Compl. ¶436
• Accused Features: The "Accused Machines" are alleged to embody the patented structures with multiple contact surfaces Compl. ¶¶32, 436-437

III. The Accused Instrumentality

Product Identification

• The complaint identifies the accused instrumentalities as "Accused Machines," which are alleged to be "infringing, knock-off machines" Compl. ¶8

Functionality and Market Context

• The complaint alleges the Accused Machines are infringing copies of Lagree's patented Megaformer® M3K+ machine Compl. ¶9 They are described as having been purchased through "Alibaba or a similar online marketplace" from a supplier identified as Hunan Lanri Technology Co., Ltd. Compl. ¶8 Compl. ¶49
• The complaint asserts these machines possess "striking similarities" in visual and functional aspects to the genuine Megaformer® M3K+ Compl. ¶40 The complaint includes a side-by-side photographic comparison to illustrate this similarity (Compl. p. 12, ¶40).
• Defendants are alleged to have promoted these machines to customers as "upgraded Megas" and "new Megas" Compl. ¶37 This image from the Defendant's social media shows the promotion of the "upgraded Megas" (Compl. p. 11, ¶37).
• Despite the alleged functional similarities, the complaint also claims the Accused Machines are of "noticeably lesser quality" and exhibit "poor upholstery craftsmanship" Compl. ¶41 Compl. p. 13

IV. Analysis of Infringement Allegations

The complaint references, but does not include, claim chart exhibits that purport to detail the infringement allegations for each asserted patent (e.g., Compl. ¶62; Compl. ¶79). Therefore, no claim chart summary table is provided.

The narrative infringement theory is consistent across all asserted patents. The complaint alleges that the Defendants have purchased, imported, and are using the "Accused Machines," which are knock-off copies of Plaintiffs' commercially successful Megaformer® M3K+ exercise machine Compl. ¶8 Compl. ¶9 Plaintiffs contend that these Accused Machines embody the inventions claimed in the Lagree Patents, which relate to exercise machine technology, including tension device systems, carriage assemblies, handle systems, and related structures Compl. ¶32 Compl. ¶63 The complaint presents a side-by-side visual comparison purporting to show the "striking similarities" between a genuine Megaformer M3K+ and an Accused Device (Compl. p. 12, ¶40). Infringement is alleged both literally and under the doctrine of equivalents for all asserted patents (e.g., Compl. ¶63; Compl. ¶80).

• Identified Points of Contention:
  • Technical Questions: A central factual question will be whether the Accused Machines, alleged to be knock-offs, actually practice each element of the asserted claims. The dispute may focus on the specific implementation of the tensioning system, the carriage handles, and the various contact surfaces, and whether they operate in a manner described by the claims. The complaint's allegation of "noticeably lesser quality" Compl. ¶41 could be used by Defendants to argue for a fundamental technical mismatch in operation, despite visual similarities.
  • Scope Questions: The case may involve claim construction disputes over key terms that appear throughout the asserted patent family, such as "selection member," "tension device," and the specific configurations of various "handles" and "platforms." The court's interpretation of these terms will be critical in determining the scope of the claims and whether the specific structures of the Accused Machines fall within that scope.

V. Key Claim Terms for Construction

The analysis below is based on the asserted independent claims of the '395 and '010 patents.

• The Term: "selection member"

• Context and Importance: This term is a core component of the claimed tension adjustment system. Its construction is critical because infringement will depend on whether the mechanism on the Accused Machines for engaging and disengaging resistance springs constitutes a "selection member" as claimed. Practitioners may focus on this term because its structure and function (e.g., having "slots" and allowing "repeated connection and disconnection") are specifically defined in the claims '395 Patent, claim 1 '010 Patent, claim 1

• Intrinsic Evidence for Interpretation:

  • Evidence for a Broader Interpretation: The patent describes the function broadly as allowing a user to "adjust which of the tension devices 70 are connected to the platform 32 thereby adjusting the amount of tension force" '395 Patent, col. 7:8-12 This functional description could support an interpretation that covers various mechanisms for selecting tension elements.
  • Evidence for a Narrower Interpretation: The specification provides specific embodiments, showing a member with "downwardly angled" portions and distinct "selection slots 52" that receive "selection knobs 74" '395 Patent, col. 7:35-50 '395 Patent, FIG. 20 A defendant may argue that the term should be limited to this specific structural arrangement, potentially excluding different adjustment mechanisms.

• The Term: "tension device"

• Context and Importance: The definition of "tension device" is central to the resistance-providing aspect of the invention. While the patent gives examples, the scope of this term will determine what types of resistance elements are covered by the claims.

• Intrinsic Evidence for Interpretation:

  • Evidence for a Broader Interpretation: The specification states that tension devices "are each preferably comprised of an elongated elastic object such as but not limited to springs, tension springs, tension coil springs or elastic bands" '395 Patent, col. 6:61-64 The "not limited to" language suggests the term is not exhaustive and could be interpreted broadly to cover other forms of elastic resistance members.
  • Evidence for a Narrower Interpretation: The detailed description and figures consistently depict the tension devices as "tension coil springs" '395 Patent, claim 4 '395 Patent, FIG. 5 An argument could be made that the invention is fundamentally directed to coil springs and the term should be construed more narrowly, especially in light of the problems in the prior art related to exposed springs.

VI. Other Allegations

• Indirect Infringement: The complaint alleges that Defendants Studio Physique and Christine Field actively induced infringement by "instructing, directing, and encouraging" customers, trainers, and staff to use the Accused Machines in an infringing manner Compl. ¶72 This is allegedly done with knowledge of the patents, based on the prior license, patent markings, and cease-and-desist letter Compl. ¶71 The complaint further alleges Defendants authorized classes and training on the machines with knowledge of infringement or a high probability of it Compl. ¶73
• Willful Infringement: Willfulness is alleged based on both pre- and post-suit knowledge. The complaint asserts Defendants had actual and constructive knowledge of the patents through multiple sources: (a) the 2015 License Agreement, which referenced the patented equipment; (b) patent markings on genuine Megaformer® machines previously used by Defendants for years; (c) Plaintiffs' patent-marking webpage; (d) a September 2025 cease-and-desist letter; and (e) the separate California litigation Compl. ¶64 The complaint alleges that despite this knowledge, Defendants "deliberately purchased the infringing Accused Machines" and continued to use them in "willful disregard of Lagree's patent rights" Compl. ¶64 The complaint also points to the Alibaba product page, which allegedly identified a third-party supplier, as evidence that Defendants knew the machines were not authorized Compl. ¶49 Compl. p. 16

VII. Analyst's Conclusion: Key Questions for the Case

1. A primary issue will be one of claim construction and equivalence: How will the court construe key terms like "selection member" and the various "handle" and "platform" configurations that appear across the twenty-three asserted patents? Subsequently, does the specific structure and operation of the accused knock-off machines, which are alleged to be of lesser quality, fall within the scope of these terms either literally or under the doctrine of equivalents?
2. A central question for willfulness and indirect infringement will be one of intent and knowledge: Given the Defendants' status as former licensees, what was their state of mind when they sourced and began using the "Accused Machines"? The court will examine the evidence of their prior relationship, the content of the cease-and-desist letter, and the details of the California litigation to determine if their conduct rose to the level of willful infringement or active inducement.
3. A key evidentiary challenge for the Plaintiffs will be one of patent-by-patent proof: With twenty-three patents asserted, covering numerous specific features from tension systems to handle configurations, can Plaintiffs demonstrate that the single model of "Accused Machine" infringes at least one claim of each and every asserted patent, or will the infringement case be viable for only a subset of the asserted portfolio?