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KSR Does Not Extend to Design Patents (Yet)

Addressing the standard for obviousness of design patents, the US Court of Appeals for the Federal Circuit, in a per curiam opinion, upheld the Patent Trial & Appeal Board’s finding that a challenged design patent was not obvious over the pre-KSR design patent obviousness test or anticipated. LKQ Corporation v. GM Global Technology Operations, Case No. 21-2348 (Fed. Cir. Jan. 20, 2023) (per curiam) (Lourie, J., concurring) (Stark, J., concurring).

GM owns a design patent for the fender of a vehicle. LKQ Corp. previously held a license to the patent from GM, but negotiations to renew the license failed. Because LKQ continued to manufacture the fender after the expiration of the license, GM sent LKQ notice that it was infringing the patent. In response, LKQ petitioned for an inter partes review against GM, alleging that the patent was obvious and/or anticipated.

The Board found that LKQ had not presented enough evidence to prove that the patent was obvious or anticipated. For purposes of evaluating the obviousness of the design over prior art, the Board defined ordinary observers as “retail consumers who purchase replacement fenders and commercial replacement part buyers.” The Board concluded that, from the perspective of the ordinary observer, there were multiple differences between the patented design and the key reference, a prior art design patent. LKQ appealed.

LKQ argued that the Board erred in finding that there was no anticipation and in applying the obviousness tests of In re Rosen (C.C.P.A. 1982) and Durling v. Spectrum Furniture (Fed. Cir. 1996) because the Supreme Court of the United States overruled those tests in KSR International v. Telflex (2007).

The Federal Circuit upheld the Board’s definition of the ordinary observer. The Court found that retail purchasers of the entire vehicle would not be included in the ordinary observer group because purchasers of the product embodying the design are interested in the part itself, not the vehicle as a whole. The Court went on to uphold the Board’s application of the ordinary observer obviousness test, agreeing that the patented design created different overall impressions from the prior art for purposes of both obviousness and anticipation.

The Federal Circuit then addressed whether KSR overruled the Durling and Rosen tests for obviousness of design patents. The Court found that LKQ properly preserved the argument for appeal by asserting it in its opening brief to the Board. The Court then found that it was unclear whether the Supreme Court overruled Durling and Rosen, and therefore the Court was bound to apply the existing law. In applying the Durling and Rosen tests, the Court found that LKQ had failed to identify “the correct visual impression created by the patented design as a whole” because the prior art patent lacked certain key design features of the patented design. Thus, the Court affirmed the Board’s finding that the patent was not obvious.

Judge Lourie provided an additional opinion and addressed LKQ’s argument that KSR overruled Rosen. Lourie stated that because KSR did not involve design patents, which [...]

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Ordinary Observer Conducts Product-by-Product Analysis in View of Prior Art

In one of two concurrent opinions concerning the same design patent case, the US Court of Appeals for the Federal Circuit vacated a district court’s entry of a preliminary injunction after concluding that the court had failed to properly consider the accused products separately and in view of the prior art when determining the plaintiffs’ likelihood of success. ABC Corp. I v. P’ship & Unincorporated Ass’ns Identified on Schedule “A”, Case No. 22-1071 (Fed. Cir. Oct. 28, 2022) (Dyk, Taranto, Stoll, JJ.)

Hangzhou Chic Intelligent Technology and Unicorn Global (collectively, the plaintiffs) own four patents claiming designs for handle-less, two-wheeled, motorized, stand-on vehicles commonly referred to as “hoverboards.” Urbanmax, GaodeshangUS, Gyroor-US, Fengchi-US, Jiangyou-US, Gyroshoes and HGSM (collectively, the appellants) sell Gyroor-branded hoverboards. In 2020, the plaintiffs sued the appellants for patent infringement and sought a temporary restraining order and a preliminary injunction. As explained here, the district court granted the preliminary injunction in 2020, but thereafter invited the plaintiffs to file a second motion for a preliminary injunction in light of unsuccessful motions by Fengchi-US, Urbanmax and Gyroor-US to dissolve the 2020 preliminary injunction for lack of notice under Fed. R. Civ. P. 65(a). Heeding the court’s advice, the plaintiffs filed a motion for a second preliminary injunction on August 24, 2021.

The primary issue before the district court concerning the 2021 preliminary injunction was whether the plaintiffs had demonstrated a likelihood of success on the merits that the accused products infringed the plaintiffs’ patents in light of certain prior art hoverboards. The prior art included a hoverboard with an hourglass-shaped body, which was a significant feature of the patented designs and the majority of the accused products. Despite the similarities between the prior art board and the claimed designs, the plaintiffs generally disregarded the prior art in their analysis. After comparing the four accused products as a group to the claimed designs, the plaintiffs’ expert opined that the accused products infringed the asserted patents based in large part on their similar hourglass bodies, in addition to other features.

The appellants’ expert countered that “the attention of the hypothetical ordinary observer will be drawn to those aspects of the claimed design that differ from the prior art,” rather than the hourglass shape, and that the additional ornamental features of the accused products were not substantially similar to the claimed designs. While the district court acknowledged that “resolving this expert dispute will likely require a trial,” it nonetheless concluded that the plaintiffs had demonstrated likelihood of success and entered the preliminary injunction order. The appellants filed a notice of appeal.

On appeal, the Federal Circuit concluded that the lower court had erred in four material respects:

  • Applying the wrong legal standard
  • Failing to conduct the ordinary observer analysis in view of the prior art
  • Failing to apply the ordinary observer analysis on a product-by-product basis
  • Crafting an overbroad injunction.

First, the Federal Circuit took issue with the district court’s entry of a preliminary injunction despite its [...]

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