15 F.4th 1378
Fed. Cir.2021Background
- HOTF (Heat On-The-Fly and affiliate Super Heaters) owned U.S. Patent No. 8,171,993 covering on-demand heated water for hydraulic fracturing; Energy Heating and Rocky Mountain competed with HOTF and Marathon contracted with Energy.
- Energy sought declaratory judgment that the ’993 patent was unenforceable for inequitable conduct, invalid as obvious, and not infringed; HOTF counterclaimed for infringement; Marathon asserted mirror counterclaims.
- The district court found all claims of the ’993 patent invalid as obvious on summary judgment and, after bench/jury proceedings, held the patent unenforceable for inequitable conduct based on HOTF’s withholding of pre‑critical-date sales/public uses with intent to deceive; the jury awarded tort damages and found HOTF made bad‑faith representations of patent validity.
- The district court initially denied attorneys’ fees under 35 U.S.C. § 285; on first appeal this court affirmed the inequitable‑conduct and tort judgments but vacated the fees denial and remanded for reconsideration.
- On remand a magistrate judge recommended finding the case "exceptional" under § 285 (citing the weakness of HOTF’s position, the extent of undisclosed prior sales, and the jury’s bad‑faith finding); the district court adopted the recommendation and awarded fees to Appellees.
- HOTF appealed the exceptional‑case determination; the Federal Circuit affirmed, reviewing for abuse of discretion and applying Octane Fitness’s totality‑of‑circumstances test.
Issues
| Issue | HOTF's Argument | Appellees' Argument | Held |
|---|---|---|---|
| Whether the district court erred by relying on the jury's bad‑faith finding to support exceptionality | Reliance on the jury finding (tied to tortious interference) was unrelated to patent‑validity strength and thus erroneous | The jury's bad‑faith finding was a proper element of the totality of circumstances bearing on HOTF's litigation posture | Court upheld use of the jury finding as a permissible equitable consideration; no abuse of discretion |
| Whether the court failed to properly weigh relevant § 285 factors (strength of position, absence of litigation misconduct, PTO continuation allowances) | The court ignored factors showing HOTF's position had merit (PTO later allowed continuations) and improperly ignored lack of litigation misconduct | The court adequately found HOTF’s position substantively weak and permissibly considered litigation manner; continuations were not dispositive | Court held the district court considered the totality of circumstances and did not err in weighting factors |
| Whether the court treated an inequitable‑conduct finding as automatically requiring an exceptional‑case finding | HOTF contended this misapplied law—inequitable conduct does not mandate fees | Appellees argued inequitable conduct is strongly probative of exceptionality and courts may award fees post‑inequitable conduct | Court found no legal error: district court did not treat inequitable conduct as automatic but reasonably relied on it among other factors |
| Whether appellate fees should be awarded now for the appeal | HOTF opposed premature award | Appellees sought appellate fees under § 285 | Court declined to decide appellate fees as premature under Federal Circuit Rule 47.7 |
Key Cases Cited
- Octane Fitness, LLC v. ICON Health & Fitness, Inc., 572 U.S. 545 (defines "exceptional" case standard under § 285 and endorses totality‑of‑circumstances test)
- Highmark Inc. v. Allcare Health Mgmt. Sys., Inc., 572 U.S. 559 (abuse‑of‑discretion standard for district court fee determinations)
- Therasense, Inc. v. Becton, Dickinson & Co., 649 F.3d 1276 (Fed. Cir.) (en banc) (noting inequitable conduct often makes a case exceptional)
- Energy Heating, LLC v. Heat On‑The‑Fly, LLC, 889 F.3d 1291 (Fed. Cir.) (prior appeal: affirmed inequitable conduct, vacated fees denial and remanded)
- Electronic Communication Techs., LLC v. ShoppersChoice.com, LLC, 963 F.3d 1371 (Fed. Cir.) (the manner of litigation is a relevant § 285 consideration)
- Monolithic Power Sys., Inc. v. O2 Micro Int’l Ltd., 726 F.3d 1359 (Fed. Cir.) (various forms of misconduct can support exceptionality)
- Camreta v. Greene, 563 U.S. 692 (vacatur strips earlier decision of binding effect on remand)