substantial evidence Archives

A Matter of Style: No Need to Select “Primary” Reference in Obviousness Challenge

by Cecilia Choy, Ph.D. | Oct 19, 2023 | Patents

The US Court of Appeals for the Federal Circuit affirmed an obviousness decision by the Patent Trial & Appeal Board, explaining that nothing requires a petitioner to identify a prior art reference as a “primary reference” in an obviousness challenge. Schwendimann v. Neenah, Inc., Case Nos. 22-1333; -1334; -1427; -1432 (Fed. Cir. Oct. 6, 2023) (Prost, Clevenger, Cunningham, JJ.)

Jodi Schwendimann filed lawsuits accusing Neenah of infringing several patents related to transfer sheets and methods for transferring images onto dark fabrics. Neenah filed several petitions for inter partes review (IPR) challenging various claims based on obviousness. The Board instituted the IPR challenges.

Schwendimann’s patents addressed a method for ensuring that dark images could be seen when transferred onto dark fabrics. Multilayer image transfer sheets were known in the prior art, teaching a two-step process to first apply a light background onto dark fabric and then apply the dark image on top. Schwendimann’s claims described a single-step solution, incorporating a white background, possibly of titanium dioxide, into the image transfer sheet so that a white background and dark image could be applied simultaneously onto a dark fabric.

All of the IPR petitions cited Kronzer as a prior art reference. Kronzer described multilayered image transfer sheets with varying configurations, although it lacked white pigment in a layer to transfer an image onto dark fabric. Another prior art reference, Oez, taught the use of a white pigment, such as titanium dioxide, in multilayered image transfer sheets. Schwendimann did not dispute that Kronzer and Oez taught or suggested all limitations recited in the challenged claims. Instead, she argued that there was no motivation for a skilled artisan to combine the references or to expect that such combination would yield a reasonable expectation of success. The Board considered and addressed each argument, relying on Neenah and Schwendimann’s experts’ testimony and the complementary and compatible nature of the references. The Board found the challenged claims obvious over Kronzer in view of Oez. Schwendimann appealed.

Schwendimann argued that substantial evidence did not support the Board’s findings that a skilled artisan would have been motivated to combine Kronzer and Oez and would have had a reasonable expectation of success in making the proposed combination. The Federal Circuit explained that substantial evidence means “such relevant evidence as a reasonable mind might accept as adequate to support a conclusion” and considered these two arguments together.

The Federal Circuit found that Schwendimann failed to show that the Board’s findings were not supported by “substantial evidence.” Like the Board, the Federal Circuit used both expert witnesses’ testimonies to explain that the references shared a common goal of improving image transfer characteristics. The Court found that Schwendimann’s arguments that Oez taught away from the proposed combination failed because Oez’s disclosure did not discourage a skilled artisan from using white pigment identified in the challenged patents or lead the skilled artisan in a direction divergent from the path taken in the challenged patents. Her argument that adding titanium dioxide into Kronzer’s transfer sheets could [...]

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This .SUCKS: Trademark Applications for Identical Characters Is a No-Go

by Jodi Benassi | Feb 10, 2022 | Trademarks

The US Court of Appeals for the Federal Circuit affirmed a Trademark Trial and Appeal Board (Board) decision affirming the US Patent and Trademark Office’s (PTO) refusal to register two trademark applications for “.SUCKS.” In Re: Vox Populi Registry Ltd., Case No. 21-1496 (Fed. Cir. Feb. 2, 2022) (Lourie, Dyk, Stoll, JJ.)

Vox is a domain registry operator that maintains the master database of all domain names registered in each top-level domain. Vox filed two trademark applications for identical characters, one as a standard character and the other as a stylized form of .SUCKS, as shown below.

The PTO refused Vox’s applications on the grounds that, when used in connection with the domain services, each failed to function as a trademark. Vox appealed to the Board. The Board concluded that .SUCKS, whether as a standard mark or in the stylized form, would not be perceived as a source identifier. Vox appealed the Board’s decision only with respect to the stylized form of .SUCKS.

On appeal, the Federal Circuit noted that although Vox did not appeal the rejection of the standard character application, it spent much of its opening brief arguing that the standard character functions as a mark. As such, the Court reviewed the Board’s decision with respect to the standard character mark .SUCKS under the substantial evidence standard. Substantial evidence “means only such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.” The Court found that substantial evidence supported the Board’s finding that consumers will view .SUCKS as only a non-source identifying part of a domain name, rather than as a trademark. The Court cited evidence reviewed by the Board, including Vox’s website, online articles and advertisements showing that .SUCKS refers to a product rather than as an identifiable provider or service. Ultimately, the Court found that the Board reasonably weighed the evidence.

The Federal Circuit next addressed the question of whether the stylized design of .SUCKS is registerable. The Court found no error in the Board’s analysis of whether the stylized form creates a separate commercial impression, where “all of the characters in the mark are the same height and width and are merely displayed in a font style that was once mandated by the technological limitations of computer screens.” Because the stylized design was not inherently distinctive, the Court rejected Vox’s application, thus affirming the Board’s decision in full.

Full Scope of Claimed Invention Must Be Enabled

by Paul Devinsky | May 20, 2021 | Patents

In a case relating to nucleic acid sequencing, the US Court of Appeals for the Federal Circuit upheld a jury verdict of non-enablement because a skilled artisan would have only known how to successfully practice a narrow range of the full scope of the nucleic acids covered by the asserted claim at the time of the invention. Pacific Biosciences of California, Inc. v. Oxford Nanopore Technologies, Case No. 21-2155, -2156 (Fed. Cir. May 11, 2021) (Taranto, J.)

PacBio sued Oxford for infringement of two patents related to methods for sequencing nucleic acids (such as DNA) using nanopore technology. The methods involve drawing nucleic acids through a nanometer-sized hole formed in a substrate. A voltage is applied to the substrate, and as the nucleic acids pass through the hole, the identity of each nucleic acid is identified based on changes in electric current passing through the substrate.

At trial, Oxford’s lawyer made opening remarks that included references to the potential applications of Oxford’s accused products to the then-emerging global COVID-19 crisis. PacBio immediately objected, and the district court gave exactly the curative instruction that PacBio requested. The district court also required that going forward, the parties give advance notice if they intended to make any reference to COVID-19. Ultimately, the jury found all asserted claims infringed, but also determined that the claims were invalid for lack of enablement under 35 USC § 112. In post-trial motions, the district court denied PacBio’s request that the court grant a new trial because of Oxford’s remark during opening statements regarding the accused products’ potential application to the then-emerging COVID-19 crisis. PacBio appealed.

On appeal, PacBio argued that the jury’s finding of lack of enablement was unsupported by the evidence, citing to testimony from its expert that a person skilled in the art at the priority date would have been able to successfully perform the methods of the asserted claims. The Federal Circuit disagreed, noting that the expert only demonstrated successful practice of the asserted claims for a narrow subset of nucleic acids covered by the claims—namely DNA hairpin molecules. The Court cited evidence where PacBio admitted through a stipulation that it had never performed the nanopore sequencing methods of the asserted claims, meaning its reduction to practice was purely constructive. The Court also noted that Oxford produced evidence that it was not until 2011 (two years after the priority date) that anyone in the field was able to use nanopore sequencing to sequence biological DNA—a different type of nucleic acid within the scope of the asserted claims. Thus, the Court found that PacBio had only demonstrated that a person of skill in the art would have been able to successfully practice a narrow range of the full scope of the nucleic acids covered by the asserted claim. The Court explained that it is not enough for enablement that the relevant artisans knew how to perform some nanopore sequencing before the priority date. Instead, what matters is the scope of the asserted claims, which relate [...]

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