Patent 11991234

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.

Cases on file (1)

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Specific litigation cases in our database that name US patent 11991234. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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Litigation History of US Patent 11,991,234

As of May 8, 2026, US patent 11,991,234 is involved in at least one pending lawsuit. The patent is part of a broader portfolio of streaming technology patents that the assignee, DISH Technologies LLC, actively enforces.

A recently filed case specifically names US patent 11,991,234:

  • Plaintiff(s): DISH Technologies L.L.C. and Sling TV L.L.C.
  • Defendant(s): MBB Ventures LLC
  • Jurisdiction: U.S. District Court for the District of Delaware
  • Case Number: 1:26-cv-00526
  • Filing Date: May 6, 2026
  • Status: This case was recently filed and is currently active. The complaint alleges that the defendant, operator of the website Spankbang.com, infringed on four of DISH's patents related to adaptive bitrate streaming technology, including patent 11,991,234.

This patent is part of a family of patents that have been asserted in other recent litigations, although those cases did not specifically list patent 11,991,234. These related cases demonstrate a pattern of enforcement by DISH Technologies and involve patents from the same portfolio acquired from MOVE Networks. For instance:

  • A case against A Parent Media Co. Inc. (Case No. 1:23-cv-01000 in the Delaware District Court) involved eight other streaming-related patents and was voluntarily dismissed in April 2024.
  • Another lawsuit against iFIT Health & Fitness, Inc. (Case No. 1:23-cv-00963 in the Delaware District Court) asserted two other patents from this portfolio and was voluntarily dismissed with prejudice in March 2024.

The litigation history indicates that DISH Technologies is actively monetizing and defending its streaming patent portfolio, often filing suits in the District of Delaware. While some prior cases have ended in voluntary dismissals, the most recent action directly involving US patent 11,991,234 is in its early stages.

Generated 5/8/2026, 6:45:32 PM