52 F.4th 934
Fed. Cir.2022Background:
- Plaintiffs Hangzhou Chic Intelligent Technology Co., Ltd. and Unicorn Global, Inc. own four design patents for hoverboards (D’723, D’256, D’195, D’112) and sued several sellers of Gyroor-branded hoverboards for design‑patent infringement.
- The district court entered a 2020 preliminary injunction (later determined procedurally defective) and then granted a renewed 2021 preliminary injunction enjoining defendants from selling "any products" that are reproductions or colorable imitations of the patented designs.
- Central prior art: U.S. Patent D’906, which discloses an "hourglass" hoverboard shape common to the asserted patents and many accused products.
- Plaintiffs relied on expert Paul Hatch, who compared the asserted patents to the accused products as a group and emphasized the hourglass shape; defendants relied on experts Jim Gandy and Lance Rake, who performed three‑way, product‑by‑product comparisons with D’906.
- The Federal Circuit reversed the 2021 preliminary injunction because the district court (1) applied the wrong legal standard, (2) failed to analyze infringement through the lens of the prior art, (3) failed to perform product‑by‑product findings as required by Rule 65(d)/Rule 52, and (4) issued an overbroad, nonspecific injunction.
Issues:
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Legal standard for likelihood of success | Plaintiffs argued they showed likelihood of success based on expert reports and overall similarity | Defendants argued the expert dispute and D’906 raise substantial questions defeating likelihood | Court held district court applied wrong standard (cannot treat need for trial/expert dispute as sufficient) and vacated injunction |
| Role of prior art (D’906 hourglass) | Plaintiffs argued hourglass and other features create overall substantial similarity | Defendants argued D’906 is relevant prior art that renders the hourglass a background feature and highlights differences | Court held district court failed to analyze infringement through lens of prior art as required (Egyptian Goddess) |
| Product‑by‑product analysis | Plaintiffs analyzed accused products as a group | Defendants urged patent‑by‑patent, product‑by‑product comparisons showing differences | Court held district court erred by not making findings for each accused product; grouped analysis insufficient under Rule 65(d) and Federal Circuit precedent |
| Scope and specificity of injunction | Plaintiffs sought removal of specific ASINs/URLs and injunctive relief against infringing products | Defendants argued injunction is overbroad and nonspecific (enjoins "any reproduction, copy or colorable imitation") | Court held injunction overbroad under International Rectifier and Rule 65(d); must identify specific products and limit relief |
Key Cases Cited
- Crocs, Inc. v. Int’l Trade Comm’n, 598 F.3d 1294 (Fed. Cir. 2010) (describing ordinary observer test for design patent infringement)
- Egyptian Goddess, Inc. v. Swisa, Inc., 543 F.3d 665 (Fed. Cir. 2008) (en banc) (requirement to view differences in light of prior art; three‑way analysis)
- Winter v. Nat. Res. Def. Council, Inc., 555 U.S. 7 (2008) (preliminary injunction standard: likelihood of success, irreparable harm, balance of equities, public interest)
- Amazon.com, Inc. v. Barnesandnoble.com, Inc., 239 F.3d 1343 (Fed. Cir. 2001) (if defendant raises a substantial question on infringement, injunction should not issue)
- International Rectifier Corp. v. IXYS Corp., 383 F.3d 1312 (Fed. Cir. 2004) (injunctions must be specific and limited to devices actually found to infringe)
- H‑D Mich., LLC v. Hellenic Duty Free Shops S.A., 694 F.3d 827 (7th Cir. 2012) (Rule 65(d) and Rule 52(a)(2) require reasons/findings for interlocutory injunctions)