Background
This case arose from a licensing dispute between Roche Diagnostics and Meso Scale Diagnostics (MSD) over patents covering electrochemiluminescence (ECL) technology used in diagnostic testing platforms. ECL is a highly sensitive detection method used in immunoassay diagnostic equipment. The underlying patents were originally developed and licensed among multiple parties, and the case turned on the scope of those license rights.
MSD claimed that Roche had infringed its patents — some through direct infringement, others through inducing customers to infringe by using Roche’s diagnostic instruments in ways covered by MSD’s patent claims. A jury sided with MSD, found that Roche’s infringement was willful, and awarded MSD $137.25 million in damages. Roche appealed on multiple grounds, including the induced infringement finding and the damages award.
The Court’s Holding
The Federal Circuit affirmed the direct infringement finding but reversed the induced infringement verdict, vacated the damages award, and remanded for a new damages trial.
The core issue on induced infringement was the intent standard. Induced infringement under 35 U.S.C. § 271(b) requires not only that the defendant knew of the patent and actively encouraged third parties to perform acts that constitute infringement, but that the defendant had actual knowledge that the induced acts constituted patent infringement. The district court had instructed the jury that Roche was liable if it “knew or should have known” of the infringement — a negligence-type standard. The Federal Circuit held that “knew or should have known” is not sufficient. Induced infringement is an intentional tort; it requires proof that the defendant had actual knowledge that what it was inducing was patent infringement.
Because the jury instruction used the wrong standard, the induced infringement verdict could not stand. The court reviewed the record and concluded that Roche lacked the requisite actual knowledge under the proper standard, reversing the induced infringement finding outright rather than remanding for a new trial on that issue.
The court also addressed the compulsory counterclaim rule, clarifying that it bars future claims but does not authorize the district court to enter an adverse judgment on claims that were not actually tried.
Judge Newman dissented, arguing that the majority had misapplied the facts and that the majority’s position that the patent owner (Roche) could not infringe patents it owns contradicted established law.
Key Takeaways
- Induced infringement under § 271(b) requires actual knowledge that the induced acts constitute patent infringement — a “knew or should have known” negligence standard is insufficient.
- Jury instructions on induced infringement must use the correct standard; a verdict based on the “knew or should have known” standard will be reversed.
- The compulsory counterclaim rule operates prospectively to bar future claims, but it does not permit district courts to enter adverse judgments on claims that were never actually tried on the merits.
- Patent damages awards, even large jury verdicts, will be vacated and sent for retrial if the underlying liability finding is flawed or the verdict cannot be apportioned between affirmed and reversed claims.
Why It Matters
Induced infringement is one of the most commonly asserted patent claims, particularly in industries where the accused infringer sells equipment or software that end-users operate in infringing ways. The Federal Circuit’s reaffirmation of the actual knowledge requirement is significant: defendants who are unaware that their customers’ actions constitute infringement — or who hold a good-faith belief that their products are non-infringing — are protected from induced infringement liability under this standard.
For patent litigants, the case also illustrates the critical importance of jury instruction accuracy. A $137 million verdict collapsed because the court gave the wrong standard. Counsel in patent cases must scrutinize jury instructions carefully, particularly on the intent elements of inducement and contributory infringement, where the Supreme Court and Federal Circuit have consistently required higher culpability than negligence.