Defendant
1 case as defendant.
Company overview. Corrigent Corporation is a patent-holding entity whose patents originate from Israeli telecom-equipment vendor Orckit Communications Ltd. / Corrigent Systems Ltd. (marketed as "Orckit-Corrigent"). Orckit was founded in 1990 by Izhak Tamir, dual-listed on Nasdaq (ORCT) and the Tel Aviv Stock Exchange from 1996, and headquartered in Tel Aviv. After the dot-com bust it accumulated debt and entered Israeli restructuring/bankruptcy proceedings in 2012. In 2016 Orckit IP purchased the company's patents through those proceedings, and Corrigent Corporation later acquired a subset. I could not verify Corrigent Corporation's own headquarters, incorporation date, employees, or revenue; it does not appear to be publicly traded or a subsidiary of a public parent, and no corporate website was located.
Products / services. Corrigent Corporation shows no evidence of an operating business — no products, sales, or services are documented. Its asset base is the patent portfolio inherited from Orckit-Corrigent, which originally covered ADSL/DSL technology, metro optical transport, Carrier Ethernet, MPLS/MPLS-TP Packet Transport Network switches (the CM-100/CM-4000 lines), and Ethernet switching and routing. Court filings describe the originating portfolio as spanning roughly 70 patent families.
Patent-litigation posture. The entity fits the non-practicing/assertion profile: it does not make or sell anything and monetizes acquired patents. The single tracked matter lists Corrigent as defendant because Cisco was the appellant in a Federal Circuit appeal; Corrigent was the plaintiff in the underlying district court suit.
Notable cases. In Corrigent Corp. v. Cisco Systems, Inc., No. 6:22-cv-00396 (W.D. Tex., Waco, Judge Alan Albright, filed April 2022), Corrigent asserted five patents ('369, '485, '431, '400, '602) against Cisco Nexus, Catalyst, ASR 9000, and NCS products, initially seeking up to $376M. Cisco prevailed: two patents fell under §101, one via summary judgment of noninfringement, one dropped after a prior-user defense, and on January 16, 2025 the court granted JMOL of no infringement on the '602 patent, awarding $0. Cisco separately petitioned for IPR; after the PTAB upheld the '602 patent in IPR2023-00447, Cisco appealed (Fed. Cir. 25-1021), and that appeal was voluntarily dismissed by agreement on February 14, 2025. Corrigent noticed an appeal of the district court judgment in August 2025.
Cisco Systems, Inc. appealed to the Federal Circuit. The appeal was reported as voluntarily dismissed under Fed. R. App. P. 42(b), with each side bearing its own costs; no merits adjudication.