799 F. Supp. 2d 967
D. Minnesota2011Background
- Safco owns U.S. Patent No. D522,708 for a pushcart design (‘708 patent)
- Jian (Shunhe) claims sole invention or co-inventorship; Chang claims sole conception
- Shunhe manufactured pushcarts for Thaler, later labeled for Safco; Thaler imported via Song Feng intermediary
- Welcom sells Magna Cart MCX and asserts Jian contributed to invention; Welcom brings Lanham Act counterclaim
- Safco acquired the ‘708 patent from Thaler in 2007 and filed infringement suit on August 12, 2008
- Court proceedings focus on inventorship to determine validity of the ‘708 patent and potential nonjoinder/co-inventorship issues
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether Jian is a co-inventor or sole inventor of the ‘708 design | Safco argues Chang conceived all; Jian contributed only production drawings | Welcom contends Jian conceived the design or was a co-inventor | Disputed; summary judgment denied on inventorship; credibility issues for trial |
| Whether the ‘708 patent is infringed if inventorship is unresolved | Infringement straightforward if design read on Welcom’s MCX | Infringement cannot be resolved without inventorship; invalidity/ownership at stake | Not resolved; summary judgment denied on infringement pending inventorship outcome |
| Whether Safco can be held invalid for nonjoinder/co-inventorship under 102(f) | Presumption of validity shifts burden to challenger; clear and convincing standard applies | Jian’s corroboration required; design elements evaluated for joint conception | Issues preclude summary judgment; fact-finder must resolve inventorship including corroboration |
| Whether Welcom’s Lanham Act counterclaim can succeed given origin issues | Safco’s products mislabeling not proven; Taiwan origin contested | If false designation occurred, remedies may include disgorgement of profits | Summary judgment on Lanham Act counterclaim denied for origin dispute; merits to trial |
| Whether the court should exclude Welcom’s expert testimony on inventorship and ornamentation | Experts offer legal conclusions; improper under Rule 702 | Erdman’s testimony helpful on factual distinctions of ornamentation | Gwin excluded; Erdman testimony allowed to remain for issues potentially relevant at trial |
| How the burdens of proof operate on summary judgment in inventorship disputes | Presumption of validity governs; clear and convincing standard applies if challenged | Clear and convincing standard governs rebuttal with corroboration; dynamic at trial | No summary resolution of inventorship; questions of fact remain for trial |
Key Cases Cited
- Ethicon, Inc. v. United States Surgical Corp., 135 F.3d 1456 (Fed. Cir. 1998) (presumption of validity; corroboration requirements in derivation/co-inventorship actions)
- Trovan, Ltd. v. Sokymat SA, 299 F.3d 1292 (Fed. Cir. 2002) (two-step analysis: claim construction then comparison of contributions to determine joint invention)
- Hoop v. Hoop, 279 F.3d 1004 (Fed. Cir. 2002) (inventorship disputes may require credibility determinations; trial may decide ultimate issue)
- Egyptian Goddess, Inc. v. Swisa, Inc., 543 F.3d 665 (Fed. Cir. 2008) (design patent infringement; ordinary observer test; limits of textual claim construction)
- Nartron Corp. v. Schukra U.S.A., Inc., 558 F.3d 1352 (Fed. Cir. 2009) (presumption of validity and burden on challenger; clear and convincing standard)