Elite Semiconductor, Inc. v. Anchor Semiconductor, Inc.

Background

Elite Semiconductor, Inc. claimed that Anchor Semiconductor, Inc. and Chenmin Hu misappropriated trade secrets under federal and California law. The alleged trade secrets concerned Local Critical Area Analysis technology that Elite developed in April 2010. Elite alleged that the defendants stole the technology’s source code and incorporated it into their products by at least December 31, 2010.

Elite filed suit on September 30, 2020. Elite said that it did not learn of the alleged misappropriation until 2019, when it discovered that Hu had filed a 2011 patent application containing the trade secrets. The defendants previously sought summary judgment based on the statute of limitations, but the court denied that earlier motion as premature because discovery was still open. After discovery ended, the defendants renewed the motion.

Statute of limitations

The federal and California trade-secret laws each provide a three-year limitations period. Under the discovery rule, the period begins when a plaintiff discovers, or through reasonable diligence should have discovered, the alleged misappropriation. The court explained that the period begins when the plaintiff suspects, or should suspect, that it has been wronged; the plaintiff does not need to possess enough evidence to prove the entire claim.

The court found that the defendants met their initial burden for summary judgment by producing evidence that Elite could not prove it was unable to discover the alleged misappropriation earlier despite reasonable diligence. Elite’s own expert stated that its trade secrets were explained in detail in the patent application, and Elite’s chief executive officer stated that his analysis showed the application was based on Elite’s misappropriated trade secrets.

The parties agreed that Elite actually received the patent application on May 3, 2013, along with an analysis comparing the application to Elite’s technology. The court held that a company presented with a third-party patent application describing its trade secrets in detail should suspect that its trade secrets were stolen and begin investigating. The court therefore found that the limitations period began by May 2013.

The court rejected Elite’s argument that the patent application was insufficient to trigger suspicion because Elite could have believed the defendants developed similar technology independently. The court distinguished a case in which the patent did not concern the plaintiff’s trade-secret features. The court also rejected Elite’s argument that knowledge of the application was insufficient without proof of misappropriation, explaining that suspicion—not proof of a winning claim—starts the limitations period.

The court further rejected Elite’s reliance on evidence that it did not actually know or suspect the alleged misappropriation until 2019. The court stated that its ruling rested on when Elite should have suspected the misappropriation, not on when Elite actually knew or suspected it. The court also held that failure to discover Anchor’s identity would not postpone the limitations period and noted that a power of attorney filed with the application identified Hu as Anchor’s president.

Fraudulent concealment

Elite argued that fraudulent concealment should toll, or pause, the limitations period because the defendants changed the name of a product called HPA. The court found that Elite did not explain how the name change made the alleged misappropriation more difficult to discover. To the extent Elite relied on statements made during the litigation about HPA’s discontinuation and the incorporation of its technology into other products, the court found that those statements occurred after the limitations period had already run. The court therefore held that fraudulent concealment did not toll the statute.

Ruling

The court concluded that Elite’s trade-secret claims needed to be filed by May 2016. Because Elite filed suit in September 2020, the court held that the claims were time barred and granted the defendants’ motion for summary judgment. The court also terminated as moot the pending motions for leave to file a third amended complaint, to exclude expert testimony, and to strike.