Sport Squad Inc v. Engage Sporting LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Sport Squad, Inc. d/b/a JOOLA (Maryland)
  • Defendant: Engage Sporting, LLC d/b/a Engage Pickleball (Florida)
  • Plaintiff’s Counsel: K&L Gates LLP
• Case Identification: 5:26-cv-00387, M.D. Fla., 05/27/2026
• Venue Allegations: Venue is asserted on the basis that Defendant is a limited liability company organized under the laws of Florida with its principal place of business within the Middle District of Florida.
• Core Dispute: Plaintiff alleges that Defendant’s pickleball paddles infringe a patent related to multi-component internal structures designed to affect paddle performance.
• Technical Context: The technology relates to the construction of composite sports paddles, such as those used for pickleball, where internal core, filler, and frame materials are combined to customize player feel and performance characteristics.
• Key Procedural History: The complaint does not contain information regarding prior litigation, inter partes review proceedings, or licensing history related to the patent-in-suit.

Case Timeline

Date	Event
2023-08-30	Earliest Priority Date for U.S. Patent No. 12,465,826
2025-11-11	U.S. Patent No. 12,465,826 Issued
2026-05-27	Complaint Filed

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

U.S. Patent No. 12,465,826 - "Game Paddle"

• Patent Identification: U.S. Patent No. 12,465,826, "Game Paddle," issued November 11, 2025.

The Invention Explained

• Problem Addressed: The patent addresses a general need for solid sports paddles, such as pickleball paddles, that can provide "better performance for players" than conventional designs (ʼ826 Patent, col. 1:16-17).
• The Patented Solution: The invention describes a paddle constructed with a multi-part internal architecture. A central core is disposed between front and back surfaces (ʼ826 Patent, col. 4:9-12). Portions of this core can be removed to create gaps, which are then filled with a "first filler" material, such as foam, to act as a vibration dampener or otherwise modify performance (ʼ826 Patent, col. 7:29-35). A separate "frame" element, which itself contains a "second filler," is added around the perimeter of the paddle (ʼ826 Patent, col. 5:11-15; ’826 Patent, col. 5:29-31). This composite structure is illustrated in cross-section in Figure 6B, showing the core (200), first filler (400), and frame (600) with its second filler (605).
• Technical Importance: The described manufacturing method allows for the strategic placement of different materials within a paddle to tune specific properties like vibration, feel, and power, moving beyond simple single-material core constructions.

Key Claims at a Glance

• The complaint asserts infringement of at least independent claim 1 (Compl. ¶17).
• The essential elements of independent claim 1 are:
  • A pickleball paddle with a front surface, a back surface, and a core between them.
  • The core has an outer boundary with a "first portion" that terminates internal to and spaced from the paddle's perimeter, and a "second portion" that terminates closer to the perimeter.
  • A "gap" exists as a void external to the core, between the core's outer boundary and the paddle's internal perimeter.
  • A "first filler" is disposed in at least part of the gap.
  • A "frame" is disposed about at least the head of the paddle, defining a "hollow interior portion."
  • A "second filler" is disposed within the hollow interior portion of the frame.
• The complaint does not explicitly reserve the right to assert dependent claims, but states it reserves the right to modify its infringement theories as discovery progresses (Compl. ¶18).

III. The Accused Instrumentality

Product Identification

The Engage Alpha Pro Pickleball Paddle ("Accused Product") (Compl. ¶12).

Functionality and Market Context

• The complaint alleges the Accused Product is a pickleball paddle that implements the technology described in the ’826 Patent (Compl. ¶12).
• The infringement allegations focus on the paddle's internal construction. The complaint provides cutaway photographs of the Accused Product, which are alleged to show a "DrivePro Polymer Core," a foam barrier, and a frame structure (Compl. Ex. 2, p. 4; Compl. Ex. 2, p. 7). This photograph shows a cross-section of the paddle's edge, revealing a honeycomb core and adjacent filler material (Compl. Ex. 2, p. 10).
• The complaint does not provide specific details regarding the Accused Product's market positioning beyond identifying it as a pickleball paddle manufactured, imported, and sold by the Defendant (Compl. ¶4).

IV. Analysis of Infringement Allegations

Infringement Allegations: U.S. Patent No. 12,465,826

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
A pickleball paddle, comprising: a front surface; a back surface opposing the front surface; a core disposed between the front surface and the back surface,	The Engage Alpha Pro Paddle is a pickleball paddle with front and back surfaces and an internal "DrivePro Polymer Core." The complaint includes a cutaway image to show the core positioned between the surfaces (Compl. Ex. 2, p. 4).	¶17	col. 4:9-12
the core having an outer boundary including a first portion shaped and dimensioned to terminate internal to, and spaced apart from, an internal perimeter of the pickleball paddle, and a second portion shaped and dimensioned to terminate closer to the internal perimeter of the pickleball paddle relative to the first portion;	The complaint alleges the Accused Product's core has an outer boundary with distinct portions matching the claim's geometric requirements. A provided image annotates a "First portion" and a "Second portion" on the core's edge to support this allegation (Compl. Ex. 2, p. 5).	¶17	col. 12:4-13
a gap formed as a void external to the core and positioned between the outer boundary of the core and the internal perimeter of the pickleball paddle, the gap extending around at least the first portion of the outer boundary of the core;	The complaint identifies a gap between the core and the paddle's perimeter. An annotated photograph highlights this alleged "gap" in the accused paddle's construction (Compl. Ex. 2, p. 6).	¶17	col. 12:14-20
a first filler disposed within at least a portion of the gap beyond the outer boundary of the core;	The Accused Product is alleged to include a "foam between the Core and Impact Edge Foam Barrier," which functions as the claimed first filler. A photograph points to a material in the gap identified as the "first filler" (Compl. Ex. 2, p. 8).	¶17	col. 12:21-23
a frame disposed about at least a head portion of the pickleball paddle along an edge portion thereof, the frame at least partially disposed between the front surface and the back surface along the edge portion,	A frame is alleged to be disposed around the head of the Accused Product. The complaint provides an annotated image showing the location of the alleged "frame" along the paddle's edge (Compl. Ex. 2, p. 9).	¶17	col. 12:24-30
the frame defining a hollow interior portion; and	The complaint alleges the frame of the Accused Product defines a hollow interior. A cross-section image of the paddle's edge is provided, showing a cavity within the alleged frame structure (Compl. Ex. 2, p. 10).	¶17	col. 12:30-31
a second filler disposed within at least a portion of the hollow interior portion of the frame.	The Accused Product is alleged to have a second filler within the hollow portion of the frame. The complaint includes a photograph pointing to material inside the frame and labeling it "second filler" (Compl. Ex. 2, p. 12).	¶17	col. 12:32-34

Identified Points of Contention

• Scope Questions: A central question may be whether the "Impact Edge Foam Barrier" identified in the Accused Product (Compl. Ex. 2, p. 7) constitutes a "frame" as contemplated by the patent. The patent describes the frame as a potentially rigid, structural component made of materials like carbon fiber that is added to the paddle's edge (ʼ826 Patent, col. 5:11-15), which raises the question of whether a foam element meets this structural definition.
• Technical Questions: The infringement claim hinges on the specific geometry of the Accused Product's core matching the "first portion" and "second portion" limitations of claim 1. The dispute may focus on whether the dimensional relationship—where one part of the core boundary is "spaced apart from" the perimeter and another is "closer to" it—is met by the Accused Product's construction.

V. Key Claim Terms for Construction

Term: "frame"

Context and Importance

The definition of "frame" is critical because the complaint identifies a foam barrier in the Accused Product as the infringing "frame" (Compl. Ex. 2, p. 7). The patent, however, discusses the frame as a structural element added to the perimeter. Whether a foam material can be considered a "frame" will likely be a key point of dispute.

Intrinsic Evidence for Interpretation

• Evidence for a Broader Interpretation: The patent does not explicitly limit the frame's material in the claims. The specification lists numerous materials for the frame, including "plastic, rubber" alongside "carbon, glass, or any synthetic or natural fiber with resin" (ʼ826 Patent, col. 5:15-18), which may support an argument that the term is not limited to rigid materials.
• Evidence for a Narrower Interpretation: The specification states the frame provides a "rigid structure" (ʼ826 Patent, col. 5:18). Embodiments describe the frame as a "hollow cuboid structure" made from "carbon fiber prepreg" that becomes hard after heating (ʼ826 Patent, col. 9:56-58; ’826 Patent, col. 9:62-64). This language may support a narrower construction requiring a certain level of structural rigidity not typically associated with foam.

Term: the core's "outer boundary" including a "first portion" and a "second portion" with specific spatial relationships to the paddle's "internal perimeter"

Context and Importance

This complex geometric language defines the unique shape of the core's edge required by claim 1. Infringement depends entirely on whether the Accused Product's core conforms to this precise two-part boundary structure. Practitioners may focus on this term because it is highly specific and appears to be the main point of novelty.

Intrinsic Evidence for Interpretation

• Evidence for a Broader Interpretation: The specification itself does not use the "first portion" / "second portion" terminology, giving these terms no special definition beyond their plain meaning. This may suggest that any core shape that can be reasonably interpreted as having these geometric features could fall within the claim's scope.
• Evidence for a Narrower Interpretation: The claim language is unusually detailed, describing one portion that must "terminate internal to, and spaced apart from" the perimeter and another that must "terminate closer to" it (ʼ826 Patent, col. 12:6-13). This high level of specificity, combined with a dependent claim (claim 15) that adds a "third portion," suggests the patentee intended to claim a very particular and non-obvious core geometry, potentially limiting its interpretation to shapes that strictly match this description.

VI. Other Allegations

Indirect Infringement

The complaint does not contain specific allegations of indirect infringement (e.g., inducement or contributory infringement). The sole count is for direct infringement (Compl. p. 4).

Willful Infringement

The complaint alleges that the Defendant's infringement has been "willful, intentional, deliberate, or in conscious disregard of rights under the patent" (Compl. ¶21). The basis for this allegation is a claim of actual knowledge, stating that "Engage has had actual knowledge of JOOLA’s ’826 Patent and of Engage’s infringement of the ’826 Patent" (Compl. ¶14). The complaint does not specify how or when this alleged knowledge was acquired.

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

This case will likely center on questions of claim construction and the technical characterization of the accused product's components. The key questions for the court appear to be:

1. A core issue will be one of definitional scope: Can the term "frame," which the patent describes as providing a "rigid structure," be construed to read on the "Impact Edge Foam Barrier" found in the accused paddle? The resolution of this question may determine whether a key element of the claim is met.

2. A second central question will be one of geometric interpretation: Does the accused paddle's polymer core possess the specific two-part "outer boundary" geometry—with one portion "spaced apart from" the paddle perimeter and a second "closer to" it—as precisely recited in claim 1? The infringement analysis will depend on a factual comparison of the product's dimensions against this highly specific claim language.