Polara Engineering, Inc. v. Campbell Co.
237 F. Supp. 3d 956
S.D. Cal.2017Background
- Polara sued Campbell for infringing U.S. Patent No. 7,145,476 (the ’476 Patent), covering a two‑wire APS (accessible pedestrian signal) that transmits power and digital data over one pair of wires. Partial summary judgment had already found Campbell’s AAPS infringed claims 1–4.
- Jury trial addressed damages, willfulness, and Campbell’s defenses (invalidity: public use, obviousness, prior publication; and inequitable conduct). Jury found the claims valid, awarded $412,926 (15% royalty on stipulated sales), and found willful infringement. Jury rejected inequitable conduct (advisory).
- Campbell renewed Rule 50 motions and attacked jury findings on invalidity and willfulness. Polara moved for a permanent injunction, enhanced (treble) damages, attorney fees under 35 U.S.C. § 285, supplemental damages, and interest.
- The court denied Campbell’s JMOL motions on public‑use, obviousness, and prior‑publication grounds, and upheld the jury’s willfulness finding as supported by substantial evidence (including continued sales after notice and counsel opinions raising uncertainty).
- The court denied inequitable conduct (finding withheld references were not but‑for material and no clear intent to deceive), granted a permanent injunction (with scope to be narrowed to cover only products that practice the data‑over‑power limitation), awarded supplemental damages (sales post‑Jan 29, 2016) at the jury’s 15% rate, prejudgment interest at the prime rate (compounded annually), postjudgment interest, and enhanced damages of 2.5x (not full treble). Attorney’s fees under § 285 were denied.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Public‑use (35 U.S.C. § 102(b)) | Polara: early street installations were experimental testing necessary to perfect the invention; not a public‑use bar. | Campbell: prototypes were reduced to practice and publicly used >1 year before filing, invalidating the patent. | Denied JMOL for Campbell. Substantial evidence supported experimental use (Clock Spring factors); no public‑use bar. |
| Obviousness (35 U.S.C. § 103) | Polara: prior art did not disclose transmitting digital data over power; differences and secondary considerations support nonobviousness. | Campbell: Wilkinson and other devices made the two‑wire/data idea obvious; a POSITA would combine references. | Denied JMOL for Campbell. Jury’s factual findings (prior art scope, distinctions, credibility of Polara’s expert) supported nonobviousness; legal conclusion upheld. |
| Prior publication / anticipation | Polara: March–May 2003 publications did not disclose all claim limitations (notably digital‑data‑over‑power) and were non‑enabling. | Campbell: industry publications and eight‑wire documentation made the two‑wire/data invention publicly described or inherent. | Denied JMOL for Campbell. Publications did not explicitly or inherently disclose every limitation or enable practice of the claimed invention. |
| Willfulness / enhanced damages | Polara: Campbell continued sales after notice and a district judge’s infringement ruling; counsel opinions were equivocal; conduct was egregious warranting enhancement. | Campbell: jury’s willfulness verdict tainted by trial references to prior infringement ruling and insufficient evidence of willful state of mind. | JMOL denied. Jury had substantial evidence of subjective willfulness (knowledge, copying, inadequate opinions, no remedial steps). Court exercised discretion to enhance damages 2.5x (not treble). |
| Inequitable conduct (failure to disclose prior art) | Polara: withheld references were cumulative or considered by examiner; no intent to deceive. | Campbell: Polara failed to disclose Wilkinson, Tassimco, Enlightened devices showing obviousness. | Court entered judgment denying inequitable conduct. Wilkinson was of record; other references were cumulative; no clear and convincing evidence of deliberate withholding or intent to deceive. |
| Permanent injunction | Polara: irreparable harm, inadequate legal remedies, balance of hardships and public interest favor injunction against infringing AAPS. | Campbell: harms to business and customers; proposed injunction overbroad (including service/repair of past sales). | Granted in part. Court ordered permanent injunction against products that practice the patented data‑over‑power limitation, rejected bar on servicing past sales, required customer notice; Polara to narrow proposed language. |
Key Cases Cited
- Halo Elecs., Inc. v. Pulse Elecs., Inc., 136 S. Ct. 1923 (2016) (Supreme Court: discretionary enhanced damages; rejected rigid Seagate objective‑recklessness test)
- Therasense, Inc. v. Becton, Dickinson & Co., 649 F.3d 1276 (Fed. Cir. 2011) (heightened standards for proving inequitable conduct: but‑for materiality and specific intent)
- eBay Inc. v. MercExchange, L.L.C., 547 U.S. 388 (2006) (no automatic injunction; four‑factor equitable test governs injunctions)
- KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398 (2007) (obviousness analysis; combination of known elements requires more than predictable use)
- Pfaff v. Wells Elecs., Inc., 525 U.S. 55 (1998) (on‑sale/public‑use bars and experimental use exception)
- Clock Spring, L.P. v. Wrapmaster, Inc., 560 F.3d 1317 (Fed. Cir. 2009) (factors for determining experimental use and public‑use inquiry)