Whirlpool Corp v. Samsung Electronics Co Ltd

I. Executive Summary and Procedural Information

• Parties & Counsel:

  • Plaintiff: Whirlpool Corporation (Delaware)
  • Defendant: Samsung Electronics Co., Ltd. (Republic of Korea); Samsung Electronics America, Inc. (New York)
  • Plaintiff’s Counsel: Susman Godfrey L.L.P.; Miller Fair Henry, PLLC

• Case Identification: 2:25-cv-01042, E.D. Tex., 02/09/2026

• Venue Allegations: Plaintiff alleges venue is proper in the Eastern District of Texas because Defendant Samsung Electronics America, Inc. maintains a regular and established place of business in Plano, Texas, and has committed acts of infringement in the district. Venue over foreign Defendant Samsung Electronics Co., Ltd. is alleged to be proper in any judicial district.

• Core Dispute: Plaintiff alleges that Defendant’s Bespoke line of dishwashers, which feature an enhanced third-level rack, infringes three patents related to dishwasher rack design and functionality.

• Technical Context: The dispute centers on the design of third-level, or "top," racks in modern dishwashers, which have evolved from simple silverware trays to more versatile structures capable of holding both utensils and drinkware.

• Key Procedural History: The complaint alleges that Whirlpool was the first and, until the accused products launched, the only manufacturer of dishwashers with an enhanced top rack capable of holding both drinkware and utensils, which it released around 2020. The complaint, filed February 9, 2026, asserts U.S. Patent No. 12,543,922, which the complaint alleges was issued on February 10, 2026, raising a potential question regarding the timing of the infringement claim for that patent.

Case Timeline

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

U.S. Patent No. 12,232,681, Dishwasher with a Dish Rack, issued February 25, 2025

The Invention Explained

• Problem Addressed: The patent's background describes the conventional layout of dishwasher racks, including upper racks for glassware and lower racks for plates, noting that third-level racks are often limited to low-profile utensils (Compl. ¶16; ’681 Patent, col. 1:22-43). This implies a need for more versatile and space-efficient rack designs.
• The Patented Solution: The invention is a single dish rack with a dual-purpose bottom wall. The rack features a "first substantially horizontal planar portion" designed to support utensils and a second, lower "depression" that is "angled with respect to the first portion" to define a "cup seat" for holding cups or other drinkware (’681 Patent, abstract; ’681 Patent, claim 14). This geometry allows a single top rack to securely hold two different categories of items.
• Technical Importance: This design aims to increase the loading capacity and flexibility of a dishwasher's third rack, a key feature in the premium appliance market segment Compl. ¶¶18, 23

Key Claims at a Glance

• The complaint asserts at least independent Claim 14 Compl. ¶34
• Essential Elements of Claim 14:
  • An automatic dishwasher comprising a tub and a dish rack.
  • The dish rack has a bottom wall with a "first portion defined by a first substantially horizontal planar portion" and a "second portion" that is "angled with respect to the first portion" to define a "depression."
  • The depression extends lower than the first portion relative to the rack's peripheral wall.
  • The first portion supports a "first set of utensil holders."
  • The second portion defines a "cup seat for supporting one or more cups."

U.S. Patent No. 10,512,385, Glasses Rack for Dishwasher, issued December 24, 2019

The Invention Explained

• Problem Addressed: The patent addresses the challenge of securely holding and effectively cleaning glassware in a top rack, where items can roll or slide, and where traditional spray arms may not provide adequate coverage (’385 Patent, col. 4:8-19).
• The Patented Solution: The invention discloses a dish rack with a bottom wall featuring an "upwardly angled portion" made of "spaced apart inclined portions." These inclined portions are configured to "cradle a glass" to prevent it from rolling, while a separate "contoured portion" prevents the glass from sliding down the incline (’385 Patent, claim 17). Critically, a spray tube with nozzles is mounted adjacent to a "curved mounting portion" formed by this same contoured structure, ensuring the spray tube is "carried with the dish rack" and directs water along the angled glasses (’385 Patent, abstract; ’385 Patent, col. 8:20-31).
• Technical Importance: This integrated design seeks to solve both the mechanical stability and fluid dynamics problems associated with washing glassware in a slidable third rack Compl. ¶21

Key Claims at a Glance

• The complaint asserts at least independent Claim 17 Compl. ¶48
• Essential Elements of Claim 17:
  • A dishwasher with a tub, a spray system, and a selectively moveable dish rack.
  • The rack's bottom wall has an "upwardly angled portion" with "a plurality of spaced apart inclined portions."
  • Two adjacent inclined portions are configured to "cradle a glass" and prevent rolling.
  • A "contoured portion" is formed in the bottom wall to prevent glasses from sliding down the incline.
  • A spray tube with nozzles emits spray "along the angled portion."
  • The contoured portion is also configured to form a "curved mounting portion" for the spray tube, such that the spray tube is "carried with the dish rack."

U.S. Patent No. 12,543,922, Dishwasher with a Dish Rack, issued February 10, 2026

• Technology Synopsis: This patent describes a dishwasher with an upper dish rack that includes both a "planar portion" and a "depression." The depression is defined by first and second angled walls that each extend at an "acute angle" relative to the planar portion. The planar portion is configured with utensil holders, while the angled walls of the depression define sets of cup seats Compl. ¶67
• Asserted Claims: At least Claim 1 Compl. ¶67
• Accused Features: The complaint alleges that the enhanced top rack of the Samsung Accused Products infringes this patent Compl. ¶66 An image in the complaint purports to show a measurement of the acute angle on the accused product's rack Compl. p. 37

III. The Accused Instrumentality

Product Identification

• The Samsung 38 dBA Bespoke Auto Open Door Dishwasher with 3rd Rack Washing System, and other Samsung dishwashers with an enhanced top rack (collectively, the "Accused Products") Compl. ¶¶25, 34

Functionality and Market Context

• The complaint describes the Accused Products as featuring an enhanced top rack advertised as a "3rd Rack Washing System" with a "dedicated area for drinkware, cutlery and utensils" Compl. ¶27 The complaint alleges this design was "modeled after the KitchenAid design" and directly competes with Whirlpool's premium dishwashers Compl. ¶¶25-26 The functionality includes a specialized rack geometry for holding both cups and flatware, as well as a dedicated sprayer system with "spinning nozzles" to clean items on that rack Compl. ¶28 The complaint includes an annotated image of the accused rack identifying its peripheral walls, bottom wall, and distinct ends Compl. p. 14

IV. Analysis of Infringement Allegations

’681 Patent Infringement Allegations

• Identified Points of Contention (’681 Patent):
  • Scope Questions: A central question may be whether the accused rack's geometry meets the claim limitation of a "first substantially horizontal planar portion." The defense may argue that the accused rack's "flat" section for utensils has contours or slight angles that remove it from the scope of "substantially horizontal."
  • Technical Questions: The analysis may focus on the definition of a "cup seat." The patent may provide specific structural details for what constitutes a "cup seat" that Samsung could argue its more general-purpose depression does not possess.

’385 Patent Infringement Allegations

• Identified Points of Contention (’385 Patent):
  • Scope Questions: The term "contoured portion" may be a key point of dispute. The claim requires this single element to perform two distinct functions: preventing glasses from sliding and forming a "curved mounting portion" for the spray tube. The defense could argue that the accused product uses separate or different structures to achieve these functions, or that its mounting structure is not "curved" in the manner described by the patent.
  • Technical Questions: The case may turn on whether the accused product's wire forms are "inclined portions" that "cradle" a glass in the same way as the patented invention, or if they function differently.

V. Key Claim Terms for Construction

• For the ’681 Patent:

  • The Term: "cup seat"
  • Context and Importance: This term is central to the invention's dual-purpose claim. The infringement allegation hinges on whether the angled depression in Samsung's rack, which accommodates drinkware, can be legally defined as a "cup seat." Practitioners may focus on this term because its construction will determine if a general-purpose indented area meets the claim's specific language.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The term is not explicitly defined, which may support an interpretation based on its plain and ordinary meaning: any structure that seats or supports a cup. Claim 14 itself broadly recites "a cup seat for supporting one of more cups in the depression," suggesting a functional definition (’681 Patent, col. 13:6-8).
    • Evidence for a Narrower Interpretation: The specification describes specific embodiments, such as in Figure 5A, which illustrates distinct structures "126" and "128" forming the seats (’681 Patent, col. 16:58-68). A defendant could argue these specific examples limit the term's scope to structures with similar defined features, rather than just an open, angled surface.

• For the ’385 Patent:

  • The Term: "contoured portion"
  • Context and Importance: The viability of the infringement claim for the '385 patent depends heavily on this term, as Claim 17 requires the "contoured portion" to perform two different functions (preventing sliding and mounting the spray tube). Practitioners may focus on this term because if the accused product achieves these functions with separate components, or if its mounting structure is not "contoured," infringement may be avoided.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The specification describes the portion functionally, stating it may be "contoured, as illustrated by example, to form a curved spray tube mounting portions 63" (’385 Patent, col. 8:20-22). The use of "by example" could support an argument that the term is not limited to the exact shape shown.
    • Evidence for a Narrower Interpretation: The patent consistently links the contour to the "curved spray tube mounting portion" ("63" in FIG. 8) and describes how glasses "may abut the curved spray tube mount portions 63...to prevent the glasses 74 from sliding" (’385 Patent, col. 8:65-68). This tight linkage could support a narrower definition requiring the specific curved mounting geometry depicted.

VI. Other Allegations

• Indirect Infringement: The complaint does not contain separate counts for indirect infringement, but the prayer for relief requests a declaration of such infringement Compl. p. 42 The complaint provides factual allegations that may support a claim for induced infringement, such as images from Samsung's marketing and user instructions that allegedly show users how to load and use the accused rack in an infringing manner Compl. ¶39 Compl. p. 16
• Willful Infringement: The complaint alleges that Samsung's infringement is willful and deliberate for all three asserted patents. The basis for this allegation is that the risk of infringement was allegedly "either known or so obvious that it should have been known to Samsung" Compl. ¶¶42, 60, 82 The complaint does not allege any pre-suit knowledge or notice.

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

• A core issue will be one of definitional scope: can terms rooted in the patents’ specific embodiments, such as "cup seat" ('681 patent) and the dual-function "contoured portion" ('385 patent), be construed to cover the multi-purpose structures in the accused Samsung rack?
• A key procedural question will be one of jurisdictional timing: can the infringement claim for the ’922 patent proceed, given that the complaint was filed on February 9, 2026, while alleging an issue date for that patent of February 10, 2026?
• A central factual question will be one of structural and functional correspondence: does the accused product's integrated rack—designed to hold both cutlery and various drinkware—possess the specific combination of planar surfaces, angled depressions, cradling portions, and integrated sprayers required by the asserted claims, or is there a fundamental mismatch in its geometry and technical operation?