Intex Recreation Corporation v. Team Worldwide Corporation
59 F. Supp. 3d 28
D.D.C.2014Background
- Intex and Team Worldwide Corp. dispute the scope and infringement of U.S. Patent No. 6,793,469 B2 ('469 patent) relating to inflatable air mattresses with a detachably connected pump and socket.
- The court construed 'socket' to mean a structure that fits and holds an inserted part with detachable connection to the part.
- Two accused pump types exist: Pump A (inflate-only) and Pump B (inflate/deflate), both with housings built into the mattress.
- The central issue is whether these accused devices literally infringe Claims 14-17, which require a socket that is distinct from the pump.
- The court granted Intex’s motion for summary judgment of non-infringement and denied TWW’s cross-motion, after considering doctrine of equivalents and claim construction.
- The case proceeded through prior Markman proceedings and PTO reexamination confirming patentability, with the court reaffirming its claim construction for purposes of infringement analysis.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether the accused devices literally infringe the socket limitations | Intex argues the housing is part of the pump, not a separate socket | TWW contends the housing is a separate socket | No literal infringement; socket not present in accused devices |
| Whether the housing constitutes a non-literal equivalent of the socket | Equivalents should cover the housing | No substantial equivalence to socket given 'fit and hold' and detachability | Non-infringement under the doctrine of equivalents; no insubstantial differences supporting equivalence |
| Whether the court should broaden the socket construction to cover disclosed embodiments | Markman construction should cover disclosed embodiments | Construction should be limited to the court’s prior 'fit and hold' | Court declines broader construction; maintains ‘fit and hold’ as construed in Markman opinion |
| Foreseeability limitation or disclosure-dedication as bar to infringement | Foreseeability limits should apply or disclosure-dedication should bar | Foreseeability is foreclosed by controlling authority; disclosure-dedication not reached | Foreseeability barred by controlling authority; disclosure-dedication not reached as alternative basis |
Key Cases Cited
- Markman v. Westview Instr., Inc., 52 F.3d 967 (Fed. Cir. 1995) (claim construction framework; two-step infringement analysis)
- Frank’s Casing Crew & Rental Tools, Inc. v. Weatherford Int’l, Inc., 389 F.3d 1370 (Fed. Cir. 2004) (literal infringement requires all limitations present)
- Desper Prods., Inc. v. QSound Labs, Inc., 157 F.3d 1325 (Fed. Cir. 1998) (equivalents analysis; element-by-element approach)
- Becton, Dickinson & Co. v. Tyco Healthcare Grp., LP, 616 F.3d 1249 (Fed. Cir. 2010) (distinct pump and socket treated as separate claim elements)
- Telemac Cellular Corp. v. Topp Telecom, Inc., 247 F.3d 1316 (Fed. Cir. 2001) (literal infringement requiring each claim element)
- Mirror Worlds, LLC v. Apple Inc., 692 F.3d 1351 (Fed. Cir. 2012) (equivalence tests: insubstantial differences; function-way-result)
- Warner-Jenkinson Co., Inc. v. Hilton Davis Chem. Co., 520 U.S. 17 (Supreme Court 1997) (established tests for equivalents re function-way-result)
- London v. Carson Pirie Scott & Co., 946 F.2d 1534 (Fed. Cir. 1991) (equivalents scope considerations)