Access Optical Networks, Inc. v. Seagate Technology LLC
- Lee
- 5:24-cv-03745
- U.S. District Court · Northern District of California
- 14
In Access Optical Networks v. Seagate Technology, Judge Lee granted summary judgment, dismissed AON’s claims with prejudice, and dismissed Seagate’s counterclaims as moot.
AON’s trade-secret and contract claims were ended with prejudice. Seagate obtained summary judgment, while its patent-inventorship counterclaims were dismissed, without leave to amend, as moot.
What happened
Access Optical Networks, Inc. v. Seagate Technology LLC concerned Access Optical Networks’ claims that Seagate misused its trade secrets and violated nondisclosure agreements. Access Optical Networks also brought claims under federal and California trade-secret laws and California contract law.
Seagate argued that the claims were filed too late. The court found that Access Optical Networks had enough information by December 5, 2018, at the latest, to bring its claims. It rejected arguments that later discovery or Seagate’s conduct extended the filing deadlines.
Judge Eumi K. Lee granted Seagate’s motion for summary judgment and dismissed all of Access Optical Networks’ claims with prejudice. The court also dismissed Seagate’s patent-inventorship counterclaims, without leave to amend, as moot.
The detailed version
- Access Optical Networks, Inc. v. Seagate Technology LLC · No. 5:24-cv-03745
- Lee
- Nov. 21, 2025
Background
Access Optical Networks, Inc. (AON) alleged that Seagate Technology LLC misappropriated AON’s trade secrets and breached the parties’ nondisclosure agreements. AON asserted three causes of action: trade-secret misappropriation under the California Uniform Trade Secrets Act, trade-secret misappropriation under the federal Defend Trade Secrets Act, and breach of contract under California law.
The parties began their relationship in 2012 and entered into a master nondisclosure agreement and two supplemental agreements. AON alleged that it shared confidential information about holographic data storage and related optical systems with Seagate between 2012 and 2015. AON later suspected that Seagate had used that information in developing heat-assisted magnetic recording products.
AON filed the action on May 17, 2024. Seagate moved for summary judgment, arguing that all of AON’s claims were barred by statutes of limitations, which are deadlines for filing legal claims.
Statutes of Limitations
The court held that AON’s trade-secret claims had three-year limitations periods and that its contract claim had a four-year limitations period. The court also accounted for a 180-day suspension of those periods during the COVID-19 pandemic. Based on the filing date, the court determined that the trade-secret claims were untimely if they accrued before November 18, 2020, and that the contract claim was untimely if it accrued before November 19, 2019.
The court found that the undisputed facts showed AON’s claims accrued no later than December 5, 2018. In April 2018, AON’s president and chief executive officer, Glenn Gladney, emailed AON’s board describing his conviction that Seagate had misappropriated AON’s trade secrets. AON then sought legal counsel and investigated the issue. On December 5, 2018, AON’s counsel wrote to Seagate expressing concerns that Seagate’s product used AON’s trade-secret information. The court concluded that AON had learned all the information it needed to pursue its claims by that date, if not earlier.
Delayed Discovery and Fraudulent Concealment
AON argued that the delayed discovery rule postponed accrual because it could not obtain a Seagate product and definitively prove the alleged misconduct. The court rejected that argument. It held that a plaintiff cannot wait to file a claim merely because definitive proof is not yet available when the plaintiff has already discovered a factual basis for the claim. The court found that AON had investigated the matter, hired counsel, confronted Seagate, and concluded that Seagate had misappropriated AON’s information by December 5, 2018.
AON also invoked fraudulent concealment, a doctrine that can delay or toll a limitations period when a defendant actively misleads a plaintiff and prevents discovery of the claim. The court held that the doctrine did not apply because AON already had actual knowledge, or enough knowledge to bring its claims, by December 5, 2018. The court further found no evidence that Seagate actively misled AON. Seagate’s denial in a January 9, 2019 letter was insufficient, and AON did not show that the denial caused it to doubt the factual basis it had already identified.
Counterclaims and Disposition
Seagate had asserted counterclaims seeking declaratory judgments about inventorship of three Seagate patents. Before the hearing, the parties agreed that these counterclaims would become moot if the court granted summary judgment and dismissed AON’s claims. The court agreed that dismissal of AON’s claims with prejudice extinguished any actual controversy between the parties. It therefore dismissed Seagate’s counterclaims, without leave to amend, as moot.
The court granted Seagate’s motion for summary judgment. It held that all of AON’s claims were time-barred and dismissed with prejudice all claims asserted by AON. Pursuant to the parties’ stipulation, it also dismissed Seagate’s counterclaims, without leave to amend, as moot.
Read the full 14-page opinion on CourtListener, the free public archive maintained by the Free Law Project.