Patent 6604216
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 (0)
Specific litigation cases in our database that name US patent 6604216. The free-form analysis below may also discuss cases beyond this list.
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
No Known Litigation Involving US Patent 6,604,216
As of April 26, 2026, a comprehensive search of public records and patent litigation databases reveals no known litigation involving US patent 6,604,216.
Extensive investigation into the significant patent infringement lawsuits filed by entities associated with Optis Wireless Technology, LLC, particularly the high-profile case against Apple Inc., does not indicate that US patent 6,604,216 was asserted.
The primary litigation, styled as Optis Wireless Technology, LLC et al v. Apple Inc., in the United States District Court for the Eastern District of Texas (Case No. 2:19-CV-00066), involved a portfolio of patents related to 4G LTE technology. Court documents and reputable legal news outlets have consistently identified the asserted patents in this case as U.S. Patent Nos. 8,019,332; 8,385,284; 8,411,557; 9,001,774; and 8,102,833. US patent 6,604,216 is not listed among them.
This long-running dispute between Optis and Apple has seen multiple trials and appeals, with initial verdicts of $506 million and $300 million in favor of Optis, which were later overturned, leading to a third trial. Throughout the various stages of this litigation, there has been no mention of US patent 6,604,216 in the available records.
Searches of specialized patent litigation resources, including the Unified Patents Portal and PACER, as well as broader legal and news searches, have yielded no independent record of litigation specifically involving US patent 6,604,216. Therefore, based on currently available information, this patent has not been the subject of any known legal disputes.
Generated 5/12/2026, 12:46:58 AM