624 F. App'x 748
Fed. Cir.2015Background
- Celgard supplied uncoated base films to LG (2005–2013); LG coated those films with ceramic to make battery separators for consumer electronics (CE) and electric vehicles (EVs).
- Parties negotiated an exclusive-supplier relationship for EV base films, memorialized in a memorandum of understanding, but negotiations broke down over price; Celgard shipped last film in July 2013 and sued in January 2014 asserting infringement of U.S. Patent No. 6,432,586 and state-law claims.
- The district court denied resolution of LG’s personal-jurisdiction challenge, permitted jurisdictional discovery, and granted Celgard a preliminary injunction enjoining LG from making, using, selling, or offering products that potentially infringe the ’586 patent; the injunction was stayed pending appeal.
- On interlocutory appeal, the Federal Circuit reviewed the injunction under Fourth Circuit abuse-of-discretion standards and examined each Winter factor (likelihood of success, irreparable harm, balance of equities, public interest).
- The Federal Circuit held the district court erred by (1) issuing an injunction without first resolving whether it had personal jurisdiction (or finding a substantial probability of jurisdiction), (2) making only a conclusory finding on likelihood of success without claim construction or factual findings, and (3) wrongly finding irreparable harm, balancing equities, and public-interest support—because Celgard’s alleged harms derived from LG’s decision to stop buying unpatented base film, not from the accused coating practice.
- The Federal Circuit reversed the preliminary injunction and remanded for further proceedings consistent with its opinion.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether court may enter a preliminary injunction without first determining personal jurisdiction | Celgard proceeded while jurisdictional discovery was pending and sought injunction to stop LG’s accused products | LG argued injunction improper if court lacks personal jurisdiction over it | Court: Legal error to grant injunction without finding a substantial probability of personal jurisdiction; vacated injunction on that ground among others |
| Likelihood of success on the patent claim | Celgard asserted claim charts showed LG likely infringed at least claim 1 of the ’586 patent | LG contended district court failed to construe claims or weigh validity/infringement evidence | Court: District court’s single conclusory sentence insufficient; proper claim construction and factual findings required |
| Irreparable harm causation and adequacy of money damages | Celgard claimed loss of goodwill, employees, and market share from LG’s activities | LG noted it had used same coating process for years while Celgard supplied base film; harms stem from LG’s supplier decision, not the coating; money damages adequate | Court: Celgard failed to show irreparable harm caused by infringement; harms tied to loss of supply relationship; money damages adequate; this factor weighs strongly against injunction |
| Balance of equities and public interest | Celgard argued injunction would protect patented technology and its competitive position | LG argued injunction could disrupt production and third-party supply chains; public interest favors continued availability of product when patentee does not practice the invention | Court: Equities and public interest favor LG (or weigh against injunction) because Celgard does not practice the patent and injunction could deny public access to the technology |
Key Cases Cited
- Abbott Labs. v. Sandoz, Inc., 544 F.3d 1341 (Fed. Cir. 2008) (applicable law for preliminary-injunction review)
- Winter v. Natural Res. Def. Council, Inc., 555 U.S. 7 (2008) (four-factor preliminary injunction framework)
- U.S. Ass’n of Importers & Textiles & Apparel v. U.S. Dep’t of Commerce, 413 F.3d 1344 (Fed. Cir. 2005) (district court must consider jurisdiction before injunctive relief)
- United States v. First Nat’l City Bank, 379 U.S. 378 (1965) (substantial probability of jurisdiction needed to justify temporary injunction)
- Titan Tire Corp. v. Case New Holland, Inc., 566 F.3d 1372 (Fed. Cir. 2009) (weigh evidence for and against validity at preliminary stage)
- Chamberlain Grp., Inc. v. Lear Corp., 516 F.3d 1331 (Fed. Cir. 2008) (correct claim construction usually prerequisite to injunction)
- Apple Inc. v. Samsung Elecs. Co., 678 F.3d 1314 (Fed. Cir. 2012) (irreparable-harm causation requirement)
- Robert Bosch LLC v. Pylon Mfg. Corp., 659 F.3d 1142 (Fed. Cir. 2011) (patentee’s inability to compete against its own product affects equitable analysis)