Zaptera USA Inc v. Aptera Motors Corp

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Zaptera USA, Inc. (California)
  • Defendant: Aptera Motors Corp. (Delaware)
  • Plaintiff's Counsel: Atabek & Co.; Morrow Ni LLP
• Case Identification: 3:24-cv-01413, S.D. Cal., 06/26/2025
• Venue Allegations: Venue is asserted in the Southern District of California on the basis that the majority of defendants reside in the district and the events giving rise to the claims occurred there.
• Core Dispute: Plaintiff alleges that Defendant's aerodynamic electric vehicles infringe two design patents, which Plaintiff acquired following the liquidation of Defendant's predecessor entity, co-founded by several of the individual defendants.
• Technical Context: The lawsuit concerns the ornamental design of an ultra-efficient, three-wheeled electric vehicle, a market segment focused on maximizing aerodynamic performance and battery range.
• Key Procedural History: The complaint alleges that Plaintiff Zaptera USA, Inc. acquired the patents-in-suit in 2012 as part of an asset purchase from the liquidating entity of the original Aptera Motors, Inc. In 2019, several founders of the original company allegedly "resuscitated" the business as Aptera Motors Corp. and began developing a vehicle with a design that Plaintiff claims infringes the purchased patents. Plaintiff asserts it provided pre-suit notice of infringement to Defendants in 2022, which was allegedly ignored.

Case Timeline

Date	Event
2010-03-19	Priority Date for D633,821 and D635,487 Patents
2011-03-08	U.S. Patent No. D633,821 Issues
2011-04-05	U.S. Patent No. D635,487 Issues
2011-12-05	Original Aptera Motors, Inc. executes General Assignment
2012-04-05	Plaintiff executes Asset Purchase Agreement for IP
2019-03-01	Defendant Aptera Motors Corp. is relaunched (approx.)
2019-11-01	Defendant begins development of accused vehicle (approx.)
2022-07-28	Plaintiff sends demand letter to Defendants
2025-06-26	Complaint Filed

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

U.S. Patent No. D633,821 - "Aerodynamic Vehicle"

The Invention Explained

• Problem Addressed: The complaint describes a market need for vehicles that are not only highly efficient but also have an "aesthetically striking and pleasing" appearance to distinguish them from other options Compl. ¶20 The implicit problem is designing a vehicle that achieves both extreme aerodynamic efficiency and a unique, marketable look.
• The Patented Solution: The '821 Patent protects the specific ornamental appearance of a three-wheeled vehicle D'821 Patent, claim 1 The design is characterized by a futuristic, teardrop-shaped body, a three-wheel configuration, and faired-in front wheels, as depicted in the patent's figures D'821 Patent, FIGS. 1-7 D'821 Patent, description The patent does not claim any functional aspects, only the visual design itself.
• Technical Importance: The aesthetic design was allegedly a "critical part of the allure of the early Aptera vehicle" and essential to its marketability and brand recognition Compl. ¶¶19-20

Key Claims at a Glance

• The patent contains a single claim for "The ornamental design for an aerodynamic vehicle, as shown and described" D'821 Patent, claim 1
• As a design patent, its elements are the collective visual features of the vehicle as depicted in solid lines in the drawings, including:
  • The overall teardrop-shaped fuselage.
  • The curved canopy and window shapes.
  • The enclosed, separate housings for the two front wheels.
  • The tapered rear section terminating above a single rear wheel.

U.S. Patent No. D635,487 - "Aerodynamic Vehicle Body"

The Invention Explained

• Problem Addressed: Similar to the '821 Patent, this patent addresses the need for a visually distinctive and aerodynamic vehicle design Compl. ¶20
• The Patented Solution: The '487 Patent claims the ornamental design for an "aerodynamic vehicle body" D'487 Patent, claim 1 Critically, the patent drawings depict the wheels in broken lines, which explicitly disclaims them from the protected design D'487 Patent, description The patented invention is therefore limited to the ornamental appearance of the vehicle's body, independent of its wheels D'487 Patent, FIGS. 1-7
• Technical Importance: This patent provides a more focused scope of protection on the core fuselage shape, which the complaint alleges is the most recognizable and essential part of the Aptera aesthetic Compl. ¶¶20-21

Key Claims at a Glance

• The patent contains a single claim for "The ornamental design for an aerodynamic vehicle body, as shown and described" D'487 Patent, claim 1
• The claim's scope is defined by the visual features of the vehicle body as shown in the drawings, excluding the wheels and any other elements shown in broken lines. The core visual elements are otherwise identical to those described for the '821 Patent.

III. The Accused Instrumentality

Product Identification

The accused instrumentality is the "Aptera vehicle" developed, marketed, and offered for pre-sale by Defendant Aptera Motors Corp. Compl. ¶47 Compl. ¶48

Functionality and Market Context

• The complaint describes the accused product as a solar-powered electric vehicle designed with a primary focus on "weight, aerodynamics, and overall efficiency" Compl. ¶59
• Plaintiff alleges the vehicle's design is "nearly identical to the old Aptera vehicles" covered by the patents-in-suit and that this distinctive shape is critical to its marketing Compl. ¶47 Compl. ¶48
• The complaint highlights the vehicle's commercial significance, citing over 47,000 pre-order reservations that represent a potential $1.7 billion in revenue Compl. ¶55 The complaint provides a visual from the Defendant's website showing the accused vehicle, which features a streamlined, three-wheeled design Compl. ¶65

IV. Analysis of Infringement Allegations

The complaint alleges infringement of two design patents, for which the legal test is the "ordinary observer" test-whether an ordinary observer, familiar with the prior art, would be deceived into purchasing the accused product believing it to be the patented one Compl. ¶77 Compl. ¶85 The complaint supports its allegations with extensive side-by-side visual comparisons.

D633,821 Infringement Allegations

The complaint provides a detailed table comparing figures from the '821 Patent with photographs of the accused Aptera vehicle to show their substantial similarity Compl. ¶76

Claim Element (Visual Feature from D'821 Patent)	Alleged Infringing Functionality (from Accused Vehicle)	Complaint Citation	Patent Citation
The overall ornamental design for a three-wheeled aerodynamic vehicle as shown in FIG. 1-7	The accused Aptera vehicle embodies a three-wheeled aerodynamic design that is alleged to be substantially the same in overall appearance.	¶77	col. 2:10-11
The specific front-quarter perspective view shown in FIG. 1	The complaint's visual comparison shows a front-quarter view of the accused vehicle that closely mirrors the perspective in FIG. 1.	¶76	col. 2:13-15
The top-down plan view of the vehicle's shape and proportions as shown in FIG. 6	The top-down photograph of the accused vehicle is alleged to show the same distinctive teardrop profile and proportions as FIG. 6.	¶76	col. 2:21-22

Identified Points of Contention

• Scope Questions: A central question will be whether the overall visual impression of the accused vehicle is "substantially the same" as the claimed design. A defense may focus on any minor differences in curvature, proportion, or surface detailing to argue against a finding of identity.
• Technical Questions: A defense may argue that the similarities between the patented design and the accused vehicle are dictated by aerodynamic function. To the extent that features are "primarily functional" rather than "ornamental," their weight in the infringement analysis may be diminished. The complaint's own emphasis on "efficiency" and "aerodynamics" may be used to support such an argument Compl. ¶20 Compl. ¶59

D635,487 Infringement Allegations

The complaint repeats its infringement theory for the '487 Patent, again using a side-by-side visual chart Compl. ¶84 This analysis must focus only on the vehicle body, as the wheels are disclaimed in the patent.

Claim Element (Visual Feature from D'487 Patent)	Alleged Infringing Functionality (from Accused Vehicle)	Complaint Citation	Patent Citation
The ornamental design for an aerodynamic vehicle body as shown in FIG. 1-7	The body of the accused vehicle, when viewed independently of its wheels, is alleged to be substantially the same as the claimed body design.	¶85	col. 2:10-11
The side elevation view of the vehicle body shown in FIG. 3	The complaint's comparison alleges the side profile of the accused vehicle's body is a "colorable imitation" of the profile in FIG. 3.	¶84; ¶88	col. 2:16-18
The rear elevation view of the vehicle body's tapered design shown in FIG. 5	The photograph of the accused vehicle's rear is alleged to be substantially the same as the design shown in FIG. 5.	¶84	col. 2:19-20

Identified Points of Contention

• Scope Questions: The key legal question is whether the accused vehicle's body is substantially similar to the claimed design when the wheels are ignored as required by the patent's disclaimers. The defense could argue that any perceived similarities are attributable to the overall vehicle impression (including the wheels) and that the bodies themselves have patentably distinct features.
• Technical Questions: As with the '821 Patent, the issue of functionality will be a likely point of contention. The defense may argue that the teardrop shape of the vehicle body is a classic example of a design dictated by the functional requirement of minimizing aerodynamic drag.

V. Key Claim Terms for Construction

In design patent litigation, claim construction focuses on the overall visual impression of the claimed design as a whole, rather than on discrete textual terms. The central "term" for construction is the claim itself.

• The Term: "The ornamental design for an [aerodynamic vehicle / aerodynamic vehicle body], as shown and described."
• Context and Importance: The scope of this "term" is the entire case. Its construction will determine what features are considered part of the protected design and to what extent functional aspects limit that protection. Practitioners may focus on this issue because the line between ornamental appearance and functional necessity is often the primary battleground in design patent cases involving high-performance products.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: A party arguing for a broader interpretation would point to the overall consistency across all seven figures in each patent, arguing that the claim covers the holistic shape and gestalt of the vehicle (or body), and that minor variations should not defeat a finding of infringement D'821 Patent, FIGS. 1-7 D'487 Patent, FIGS. 1-7
  • Evidence for a Narrower Interpretation: A party arguing for a narrower interpretation would highlight that the design is for an "aerodynamic" vehicle, suggesting functionality is a core aspect D'821 Patent, title This, combined with the complaint's own statements about the design permitting "levels of efficiency" Compl. ¶20, could support an argument that features driven by aerodynamics are functional and should be afforded a narrow scope of protection. For the '487 Patent, the explicit disclaimer of the wheels via broken lines provides clear intrinsic evidence that the claim is narrowed to the body alone D'487 Patent, description

VI. Other Allegations

• Indirect Infringement: The complaint does not plead separate counts for indirect infringement. Its allegations are focused on direct infringement by the corporate defendant and the individual defendants who are alleged to have participated in the design, manufacture, and sale of the accused vehicles Compl. ¶78 Compl. ¶86
• Willful Infringement: The complaint lays a detailed foundation for willfulness. It alleges Defendants had pre-suit knowledge of the patents based on several grounds: the individual defendants were inventors of the patents and founders of the company that sold them to Plaintiff Compl. ¶¶18-19 Compl. ¶32; Defendants' own later patent applications cited the patents-in-suit in an Information Disclosure Statement Compl. ¶52; and Defendants received a formal notice of infringement letter from Plaintiff's counsel in July 2022 Compl. ¶69 The complaint further alleges that Defendants' conduct was based on a belief that the party able to enforce the patents was deceased Compl. ¶45

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

1. A question of ownership and standing: The complaint presents a narrative of a clear chain of title for the patents-in-suit, from the original Aptera entity to Plaintiff Zaptera Compl. ¶¶34-39 However, it also notes that Defendants' counsel disputed Plaintiff's standing Compl. ¶70 A threshold issue for the court will therefore be to resolve whether Plaintiff can definitively establish its ownership of the patents and its right to bring this infringement action.

2. A question of design scope versus functionality: The core patent law question will be whether the accused vehicle's design is "substantially the same" as the patented designs under the ordinary observer test. This will likely turn on the doctrine of functionality: can Defendants persuade the court that the striking similarities in shape are dictated by the functional requirements of aerodynamics, thus rendering those features unprotectable by a design patent and leaving only minor, non-infringed ornamental differences?

3. An evidentiary question of intent: The complaint alleges a unique history where the original creators of an IP asset allegedly reappropriated it after its sale. A central question will be one of willfulness: can Plaintiff prove that the individual Defendants, as inventors and former executives, knew of Plaintiff's rights and either deliberately disregarded them or proceeded with objective recklessness, particularly after receiving a formal notice letter?