'Design Impact' and 'Association' Surveys Deemed Admissible in Design Patent Infringement Case

November 27, 2024

Reading Time : 1 min

A district court recently refused to exclude testimony regarding consumer surveys conducted by a design patent expert, holding instead that the consumer surveys may be probative of how an ordinary observer would view the designs at issue, and thus could assist the factfinder in determining design patent infringement under the ordinary observer test.

The designs at issue involved the appearance of a smartwatch. As part of its infringement case, the patent owner’s expert conducted two types of consumer surveys—a design impact survey and an association survey. The design impact survey was intended to assess whether the claimed smartwatch design impacted purchase decisions and asked participants to rank which features would have an effect on the likelihood they would purchase the watch. The association survey was intended to assess whether consumers associated the accused design with the claimed design.

The defendant moved to exclude the surveys, arguing that they did not apply the ordinary observer test for design patent infringement and therefore did not assist the factfinder in determining whether the accused watch was substantially the same as the claimed design. The court disagreed and held that the expert’s surveys were not intended to answer the ultimate question of infringement, but instead could be probative of how an ordinary observer would view the designs. As such, the surveys were admissible, and the defendant’s challenges to the surveys could be addressed through cross-examination and presentation of contrary evidence.

Practice Tip: A party advancing or defending against claims of design patent infringement should consider introducing consumer surveys as evidence of how an ordinary observer would view a design. Such surveys may be admissible, not as evidence of whether the design patent is infringed, but for their probative value on how an ordinary observer views a given design.

Apple Inc. v. Masimo Corporation et al, No. 22-1377, D.I. 695 (D. Del. Oct. 10, 2024)

Share This Insight

Previous Entries

IP Newsflash

June 6, 2025

In a precedential opinion, the Federal Circuit definitively held that the Patent Trial and Appeal Board has jurisdiction over IPRs that concern expired patents.

...

Read More

IP Newsflash

June 6, 2025

In a patent infringement litigation in the U.S. District Court for the Eastern District of Texas, Judge Rodney Gilstrap denied a joint motion to stay the litigation pending resolution of inter partes review when it was uncertain that all defendants would be bound by the statutory estoppel provision of 35 U.S.C. § 315(e).

...

Read More

IP Newsflash

May 30, 2025

A district court recently dismissed a patent infringement complaint for improper venue under 28 U.S.C. § 1400(b), finding that the storage and distribution of products from an Amazon warehouse was not sufficient to establish that warehouse as a regular and established place of business in the district.

...

Read More

IP Newsflash

May 27, 2025

The Federal Circuit affirmed a District of Delaware finding of non-infringement in an ANDA litigation due to the patentee’s clear and unmistakable disavowal of claim scope during prosecution. Specifically, the court held that statements made during prosecution of a parent application before the asserted claims were allowed amounted to a prosecution disclaimer that extended to subsequent patents in the family. In reaching this conclusion, the court rejected an attempt by the patentee to resurrect the claim scope through a unilateral, self-serving statement made in later applications in the family.

...

Read More

IP Newsflash

May 13, 2025

The Federal Circuit recently affirmed a district court’s holding that patent term extension (PTE) for a reissued patent was properly based on the issue date of the original patent and not that of the reissued patent. The Federal Circuit concluded that, where both the original and reissued patents claimed a drug product under regulatory review, using the issue date of the original patent to calculate PTE comports with both the purpose of the Hatch-Waxman Act and the related statutory context.

...

Read More

IP Newsflash

May 12, 2025

The Patent Trial and Appeal Board recently declined to institute a petition for IPR that was filed on the same day that the petitioner filed another petition challenging the same claims of the same patent. The board was not persuaded by petitioner’s arguments that a second petition was needed due to alleged claim construction issues or the number, length or scope differences of the challenged claims.

...

Read More

IP Newsflash

May 9, 2025

The USPTO Director vacated the board’s decision to institute inter partes review based on an erroneous application of the Fintiv factors. Specifically, the Director found that the board placed too much emphasis on Petitioner’s Sotera stipulation, and not enough emphasis on the investment in the parallel litigation. Weighing the factors as a whole, the Director determined that institution should be denied.

...

Read More

IP Newsflash

May 9, 2025

In an institution decision following the USPTO’s withdrawal of its Fintiv Memo, the board addressed discretionary denial of an IPR under Fintiv in view of a parallel ITC investigation. The board noted it would not consider the now-rescinded June 2022 memo from then-director Vidal which instructed that the PTAB would not deny institution of an IPR or PGR under Fintiv when the request is based on a parallel ITC investigation. The board conducted a Fintiv analysis in view of the ITC investigation, but ultimately determined that discretionary denial was not warranted in this particular situation.

...

Read More

© 2025 Akin Gump Strauss Hauer & Feld LLP. All rights reserved. Attorney advertising. This document is distributed for informational use only; it does not constitute legal advice and should not be used as such. Prior results do not guarantee a similar outcome. Akin is the practicing name of Akin Gump LLP, a New York limited liability partnership authorized and regulated by the Solicitors Regulation Authority under number 267321. A list of the partners is available for inspection at Eighth Floor, Ten Bishops Square, London E1 6EG. For more information about Akin Gump LLP, Akin Gump Strauss Hauer & Feld LLP and other associated entities under which the Akin Gump network operates worldwide, please see our Legal Notices page.