Ivera Medical Corporation v. Hospira, Inc.
801 F.3d 1336
Fed. Cir.2015Background
- Ivera Medical sued Hospira for infringing three related patents (’794, ’302, ’514) claiming a disinfecting cap with a vent (a second opening/aperture/means for venting) that allows evaporation and inhibits pressure buildup when compressing a cleaning pad.
- The patents describe caps with internal compressible cleaning materials and embodiments showing small vent apertures (threaded ring creating a vent) or holes in the housing to permit evaporation.
- Relevant prior art: Hoang (cap with threaded attachment and impregnated pad but no explicit vent), Chin-Loy (cap/channel permitting venting for blood ports), and White (protective cap with antiseptic-saturated sponge that may bathe exterior surfaces).
- During prosecution and reexaminations, applicants amended claims to recite vents; examiners initially allowed claims based partly on the vent limitation but later inter partes reexamination rejected claims as obvious over combinations including Hoang and Chin-Loy.
- District court construed “opening/second opening/aperture” and “means for venting,” then granted Hospira summary judgment of obviousness under 35 U.S.C. § 103, finding a skilled artisan would have been motivated to add vents from Chin‑Loy/White to Hoang.
- On appeal, the Federal Circuit found genuine factual disputes (expert and inventor declarations asserting a contemporaneous preference for fluid‑tight caps to retain cleaning solution) about whether a person of ordinary skill would be motivated to add a vent, and reversed and remanded the summary judgment of invalidity.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether the asserted claims are obvious over Hoang combined with venting disclosures (e.g., Chin‑Loy, White) | A skilled artisan would not have been motivated to add a vent because conventional practice sought fluid‑tight caps to retain cleaning solution (supported by inventor and expert declarations) | Chin‑Loy and White teach venting/bathing benefits that would motivate adding vents to Hoang’s cap; written description supports evaporation | There is a genuine dispute of material fact on motivation to combine; summary judgment of obviousness reversed and remanded |
Key Cases Cited
- Microsoft Corp. v. i4i Ltd. P'ship, 564 U.S. 91 (clear and convincing standard for invalidity)
- Anderson v. Liberty Lobby, 477 U.S. 242 (summary judgment standard and disputes of fact)
- Graham v. John Deere Co., 383 U.S. 1 (Graham factors for obviousness)
- KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (motivation-to-combine analysis and flexible approach)
- Gen. Elec. Co. v. Joiner, 522 U.S. 136 (resolving factual disputes against movant on summary judgment)
- InTouch Techs., Inc. v. VGO Commc'ns, Inc., 751 F.3d 1327 (motivation and reasonable expectation of success standards)
- Plantronics, Inc. v. Aliph, Inc., 724 F.3d 1343 (resolving factual disputes in patent cases at summary judgment)
- Humane Soc'y of the U.S. v. Locke, 626 F.3d 1040 (appellate review of summary judgment standard)
- Lew v. Kona Hosp., 754 F.2d 1420 (standard for appellate application of district court's summary judgment review)
- Aristocrat Techs. Austl. Pty Ltd. v. Int'l Game Tech., 709 F.3d 1348 (regional-circuit law governs summary judgment review)