Arctic Cat Inc. v. Bombardier Recreational Products Inc.

Obviousness is ultimately a legal question, but it rests on factual findings under Graham, including the scope of the prior art, differences from the claims, the level of skill, motivation to combine, reasonable expectation of success, and objective indicia. Because the jury returned a general verdict of nonobviousness, the Federal Circuit presumed it resolved factual disputes for Arctic Cat and asked only whether substantial evidence supported those presumed findings.

BRP offered evidence favoring a combination: Society of Automotive Engineers reports discussed using the Challenger's automatic throttle reapplication system to improve off-throttle steering in personal watercraft, and industry organizations identified off-throttle steering as a safety problem. But the appellate court could not reweigh that evidence against Arctic Cat's proof. Its role was not to decide which side presented the more persuasive case, but to determine whether a reasonable jury could accept Arctic Cat's position.

The same SAE reports that identified potential benefits also warned that automatic restoration of thrust could create new hazards, including collisions caused by inadvertent thrust near boats, swimmers, or fixed objects. The reports further noted problems with proposed "smart" controls, such as operation contrary to the rider's intentions. Testimony supported a finding that unsophisticated automatic throttle reapplication could be dangerous and that a more selective, on-demand system might be preferable to the claimed system, which activates when the rider turns.

The evidence also allowed the jury to reject BRP's assertion that the invention was merely one of four finite, predictable options under KSR. Witnesses described numerous possible design approaches, BRP itself built seventeen prototypes over five years, and an internal BRP brainstorming session identified thirty-two possible designs. There was also evidence that successful application of the Challenger approach to a personal watercraft was surprising rather than predictable; even BRP's witness acknowledged that what works on a jet boat may not work on a personal watercraft.

Objective indicia reinforced the verdict. A Coast Guard official praised Arctic Cat's prototype as an impressive innovation that could address the steering problem without the adverse handling and safety effects associated with fins or rudders. The evidence also showed a long-standing, unresolved need: efforts to solve off-throttle steering had continued for decades without commercially viable success, and no publicly available personal watercraft used throttle reapplication before Arctic Cat's invention. Considering all the findings together, BRP had not established obviousness by clear and convincing evidence.

Section 287(a) limits a patentee's recovery of pre-notice damages when the patentee, or a person making or selling patented articles for or under the patentee, fails to mark those articles. The patentee bears the ultimate burden to plead and prove compliance. This obligation extends to licensees, although a patentee's reasonable efforts to secure a third party's compliance may be relevant under the rule of reason.

Arctic Cat's agreement gave Honda a fully paid-up license covering the patents at issue, while expressly providing that Honda had no obligation to mark its products. Honda sold personal watercraft through 2009 without patent markings, and Arctic Cat made no effort to ensure marking. Thus, if Honda's watercraft practiced the asserted claims, Arctic Cat could not obtain damages for infringement before actual notice.

The Federal Circuit adopted a burden-shifting framework. An accused infringer has a modest initial burden of production: it must identify specific unmarked products that it believes are patented articles. This requirement prevents a vague marking challenge from forcing the patentee into an unlimited search through every product it or its licensees ever sold. Once the accused infringer identifies those products, however, the patentee retains the burden of persuasion and must prove that the identified products do not practice the asserted patent.

BRP satisfied its initial production burden by introducing the Honda license agreement, identifying fourteen Honda Aquatrax models, and offering expert testimony that Honda's throttle-reapplication system would practice the claims if BRP's OTAS system did. BRP did not have to provide claim charts or prove infringement by Honda products at that stage. The district court erred by treating proof that Honda's products practiced the claims as BRP's burden.

The court did not direct judgment for BRP because the district court's erroneous burden allocation had deprived Arctic Cat of fair notice and a fair opportunity to develop evidence that the Honda products did not practice the patents. The case was therefore remanded for Arctic Cat to make that showing, with the district court to decide whether further discovery was appropriate.

Arctic Cat's damages expert used BRP's later-developed Intelligent Brake and Reverse system as a benchmark in valuing the earlier OTAS system. BRP contended that the systems were not sufficiently comparable, so the testimony should have been excluded under Daubert.

The district court reasonably allowed the testimony because the damages expert relied on another expert's specific opinion that OTAS and the Intelligent Brake and Reverse system had comparable technological and safety value. That opinion rested on an investigation of how the systems operated and the benefits they supplied, not on a conclusory assertion.

BRP's criticism of the comparison went to the weight of the evidence rather than its admissibility. BRP had the opportunity to challenge the comparability evidence through cross-examination. Because BRP did not meaningfully develop a separate challenge to the sufficiency of the evidence supporting the royalty amount, the court affirmed the denial of judgment as a matter of law.

An ongoing royalty may be based on a post-judgment hypothetical negotiation and evaluated using the Georgia-Pacific factors. The district court considered those factors and concluded that the changed circumstances after a judgment of validity and infringement justified a royalty higher than the jury's pre-judgment reasonable royalty.

BRP argued that the ongoing rate improperly captured its profits. The Federal Circuit rejected that argument because a reasonable royalty is not capped by the infringer's claimed profit margin, and prior decisions have sustained royalties at or near an infringer's profits. The legal and economic relationship of the parties materially changes after an infringement judgment, so a different and higher post-judgment rate may be appropriate.

The record supported the jury's finding that BRP acted despite an unjustifiably high risk of infringement. Evidence showed that BRP knew of Arctic Cat's patents before they issued, performed only a cursory review, waited years to obtain advice from qualified patent counsel, and unsuccessfully attempted to acquire the asserted patents through a third party. The Federal Circuit would not substitute its own assessment for the jury's where this evidence substantially supported the verdict.

The instruction told the jury that Arctic Cat had to prove by clear and convincing evidence that BRP actually knew or should have known that its conduct created an unjustifiably high risk of infringing a valid and enforceable patent. BRP argued that Halo foreclosed a "should have known" formulation. The court rejected that argument because Halo eliminated Seagate's rigid objective-recklessness prerequisite, but preserved the substantive concept of subjective willfulness based on a risk known to the accused infringer or so obvious that it should have been known.

The district court initially trebled damages with little explanation, but later issued a thorough opinion applying the Read factors. Although BRP was not given separate briefing before the court made the enhancement decision, it did not explain how briefing would have altered the result. The Federal Circuit declined to create a categorical rule that deciding enhancement without briefing is necessarily an abuse of discretion.