Adtran resolves long-running patent litigation, reinforcing commitment to defend innovation

Key Terms

patent litigation regulatory

A court fight over who has the legal right to make, use or sell a particular invention or product design. For investors it matters because the outcome can block sales, force royalty payments or open the door to wider market access, much like a disputed property line can prevent someone from building or selling on a plot of land and change the expected value of an investment.

counterclaims regulatory

Counterclaims are allegations a defendant files back against the original plaintiff in response to a lawsuit, asserting that the other side also caused harm or owes compensation. For investors, counterclaims matter because they can extend litigation, increase potential costs and uncertainty, and alter a company's legal exposure and reputation—like a spat between two businesses that escalates into a longer, more expensive fight with financial consequences.

with prejudice regulatory

A legal phrase meaning a claim, lawsuit, or right is closed permanently and cannot be brought again; it signals finality in a dispute. For investors, 'with prejudice' matters because it removes the chance of the same legal exposure reappearing, similar to locking a door so no one can enter again, which can reduce uncertainty about future liabilities and affect valuation and risk assessments.

News summary:

• Non-practicing entity litigation continues to create costly, time-consuming pressure across the technology industry
• Adtran has reached a full settlement following counterclaims, with payment made to Adtran and all claims dismissed with prejudice
• Outcome reflects Adtran’s commitment to defend its innovations, customers and business against meritless patent assertions

HUNTSVILLE, Ala.--(BUSINESS WIRE)-- Adtran today announced it has resolved a patent litigation matter, resulting in a full settlement and dismissal of all claims with prejudice. The case, initiated in 2020 by a non-practicing entity asserting five patents, was transferred to the US District Court for the Northern District of Alabama in 2021 following a successful motion by Adtran. Adtran subsequently filed counterclaims, including bad-faith patent assertion under Alabama statutory law. The settlement includes payment to Adtran to resolve its counterclaims. Terms of the agreement remain confidential.

“This outcome reflects a disciplined and consistent approach to protecting our innovation and our customers,” said Justin Ferguson, SVP and general counsel at Adtran. “We take all claims seriously, but we will not hesitate to defend ourselves when assertions lack merit. Situations like this place unnecessary strain on technology providers and divert resources from advancing networks and services. By advancing our counterclaims, we have reinforced our position and demonstrated that we will follow matters through when required.”

The resolution of this matter reflects Adtran’s commitment to safeguard its technology, customers and business. The company will continue to respond firmly to meritless patent assertions and pursue available remedies where it believes claims are brought in bad faith.

“This resolution sends a clear message: Adtran is not an easy or inexpensive target for non-practicing entity litigation,” Mr. Ferguson continued. “When necessary, we will pursue counterclaims and other available remedies to protect our innovation, our business and our customers.”

About Adtran

ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) is the parent company of Adtran, Inc., a leading global provider of open, disaggregated networking and communications solutions that enable voice, data, video and internet communications across any network infrastructure. From the cloud edge to the subscriber edge, Adtran empowers communications service providers around the world to manage and scale services that connect people, places and things. Adtran solutions are used by service providers, private enterprises, government organizations and millions of individual users worldwide. ADTRAN Holdings, Inc. is also the majority shareholder of Adtran Networks SE, formerly ADVA Optical Networking SE. Find more at Adtran, LinkedIn and X.

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ADTRAN Holdings, Inc.
www.adtran.com

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Source: ADTRAN Holdings, Inc.