Defendant
6 cases as defendant.
DivX, LLC is a privately held American video technology company founded in 2000 and headquartered in San Diego, California. The company has a history of acquisitions, with certain assets, intellectual property, and subsidiaries being sold to Fortress Investment Group in February 2018. DivX, LLC is a wholly-owned subsidiary of DivX CF Investors, which is advised by Fortress Investment Group LLC. DivX has approximately 51-100 employees.
DivX specializes in digital video technologies, best known for creating the DivX family of digital video codecs, including MPEG-4 Part 2, H.264/MPEG-4 AVC DivX Plus, and DivX HEVC Ultra HD codecs. Its product offerings include consumer software for playing, converting, and casting high-quality video (up to 4K resolution) across various devices. The company also licenses its technologies and certifies consumer electronic devices and integrated circuits, with over 2 billion DivX-enabled devices shipped worldwide. DivX launched a strategic patent licensing program in 2019, managing a portfolio of over 600 patents globally.
While our database tracks DivX LLC as a defendant in one case before the Patent Trial and Appeal Board (PTAB), external information indicates the company is an active patent licensor and plaintiff, often characterized as a Patent Assertion Entity (NPE) by organizations like Unified Patents. DivX has been involved in multiple patent infringement lawsuits as a plaintiff against major technology companies.
A notable case involving DivX LLC is Unified Patents v. Divx LLC at the PTAB, which was affirmed by the U.S. Court of Appeals for the Federal Circuit. This case centered on U.S. Patent No. 10,326,987 B2, related to adaptive bitrate (ABR) streaming video encoding systems, where the claims were ultimately found unpatentable. DivX's patent litigation activities, including suits against Amazon and Netflix concerning streaming and encryption technologies, are often connected to its ownership by entities affiliated with Fortress Investment Group.
Declaratory-judgment action arising from a dispute with DivX in which the covenant not to sue at issue expressly covers U.S. Patent No. 8,472,792 along with other DivX Patents. The final disposition was not verified in the narrative.
Inter partes review petition by Netflix, Inc. challenging U.S. 9,998,515 (application 15/009,593); Hulu, LLC was involved on related petitions. The Board instituted on October 1, 2020 and issued a Final Written Decision on September 27, 2021 upholding the patentability of the challenged claims.
Netflix and Hulu petitioned for inter partes review of claims 1–5 and 12 of U.S. 9,270,720. The Board instituted review and issued a final written decision on September 27, 2021 finding no challenged claims unpatentable.
Netflix and Hulu petitioned for inter partes review of U.S. Patent No. 8,472,792. The Board instituted review and initially rejected the obviousness grounds, but the Federal Circuit vacated and remanded; Hulu was later terminated as a petitioner after settlement, leaving Netflix as sole petitioner.
Netflix petitioned for inter partes review of all claims 1-24 of the '588 patent in February 2020, asserting obviousness over Chen, Lindahl, and Hurst. The Board instituted in August 2020; after multiple Federal Circuit appeals, the matter was remanded to the PTAB following the Feb. 13, 2026 Federal Circuit decision in No. 24-1541.
Appeal from IPR2020-00646 concerning U.S. Patent No. 8,472,792. The Federal Circuit vacated the Board's Final Written Decision and remanded for the Board to decide whether Kaku is in the same field of endeavor.