U.S. Ethernet Innovations v. Texas Instruments Incorporated
645 F. App'x 1026
Fed. Cir.2016Background
- U.S. Ethernet Innovations, LLC (USEI) sued Texas Instruments (TI) in the Eastern District of Texas for infringement of U.S. Patent No. 5,434,872 (the ’872 patent). Two juries found the asserted claims not invalid and TI liable; the district court entered judgment for USEI and awarded damages.
- Separately, USEI litigated the same ’872 patent in the Northern District of California (Acer case). The Northern District granted summary judgment that the asserted claims were anticipated by the SONIC reference and entered final judgment of invalidity.
- This court concurrently affirmed the Northern District of California’s invalidity ruling in the companion Acer appeal.
- After the Acer judgment, TI moved in the Eastern District to apply collateral estoppel and enter judgment of invalidity despite the earlier jury verdict favoring USEI; the Eastern District granted TI’s motion.
- USEI appealed, arguing in part that Fifth Circuit law should prevent applying collateral estoppel to overturn the earlier favorable final judgment; the Federal Circuit applied its precedent and affirmed based on issue preclusion following its affirmance in Acer.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether collateral estoppel can be applied after an earlier final judgment in the same case when a later, inconsistent judgment in another district (affirmed by this court) finds the patent invalid | USEI: Fifth Circuit rule (Cycles) makes prior final judgments immune from preclusion by later inconsistent judgments | TI: The later invalidity judgment has preclusive effect and must nullify the earlier favorable judgment | Court: Applied Federal Circuit precedent; affirmed that the affirmed Acer invalidity ruling precludes enforcement of the ’872 patent against TI |
| Whether Federal Circuit or Fifth Circuit law governs issue-preclusion questions implicating this court’s prior decisions | USEI: Favored Fifth Circuit approach to preserve its favorable final judgment | TI: Federal Circuit law governs preclusion for issues implicating this court’s prior decisions | Court: Federal Circuit law applies where issue preclusion implicates the scope of this court’s decisions |
| Whether USEI had a full and fair opportunity to litigate validity in Acer (predicate for collateral estoppel) | USEI: did not contest full and fair opportunity | TI: argued full and fair litigation occurred in Acer | Court: USEI had a full and fair opportunity; collateral estoppel applies |
| Whether the district court should have addressed TI’s Rule 50(b) motion or USEI’s willfulness argument on appeal | USEI: District court’s refusal to let USEI present willfulness was error | TI: Preclusion of validity renders willfulness moot | Court: Did not reach willfulness because issue preclusion compelled affirmance |
Key Cases Cited
- Blonder-Tongue Labs., Inc. v. Univ. of Ill. Foundation, 402 U.S. 313 (1971) (non-mutual issue preclusion may bar patentee from relitigating validity after prior invalidity judgment)
- Mendenhall v. Barber-Greene Co., 26 F.3d 1573 (Fed. Cir. 1994) (precluding relitigation where a later-affirmed invalidity judgment arose while related suits were pending)
- Soverain Software LLC v. Victoria’s Secret Direct Brand Mgmt., LLC, 778 F.3d 1311 (Fed. Cir. 2015) (issue preclusion can apply even if the precluding judgment comes into existence while the case is on appeal)
- Precision Instrument Mfg. Co. v. Automotive Maint. Mach. Co., 324 U.S. 806 (1945) (recognizing public interest in preventing enforcement of invalid patents)
- Hart Steel Co. v. R.R. Supply Co., 244 U.S. 294 (1917) (illustrative of using companion decisions to simplify preclusion determinations)