Patent 11653183

Litigation summary

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

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PTAB activity (1)

AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.

  • IPR2026-00104IPRfiled Oct 31, 2025vs. Apple Inc.Institution Denied

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Cases on file (1)

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Specific litigation cases in our database that name US patent 11653183. 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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As of April 26, 2026, there is one known litigation involving U.S. Patent No. 11,653,183.

District Court Litigation

Case Title: HBCU Messaging US LP v. Apple Inc. and Green Dot Corporation

  • Plaintiff: HBCU Messaging US LP (formerly Rembrandt Messaging Technologies II, LP)
  • Defendants: Apple Inc. and Green Dot Corporation
  • Jurisdiction: U.S. District Court for the Western District of Texas
  • Case Number: 1:24-cv-01199
  • Filing Date: October 7, 2024
  • Status: Pending

The complaint alleges that Apple's messaging services and devices, and Green Dot's technology utilized within those services, infringe upon seven patents, including the '183 patent. The patents are described as relating to a "messaging system that can utilize either a short message service ('SMS') or packet switched message service ('PSMS')."

The plaintiff, HBCU Messaging US LP, is a subsidiary of the HBCU Technology Foundation and acquired the patents from the Rembrandt IP Management, LLC monetization firm. The lawsuit claims a history of litigation involving the patent family, including a suit filed in Germany by a related Rembrandt entity against Apple in 2015 over a European counterpart patent.

Generated 5/13/2026, 12:46:33 AM