Patent 5602377
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 5602377. 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.
Litigation History of U.S. Patent 5,602,377
As of April 28, 2026, a comprehensive search of patent litigation databases, including the USPTO assignment database, CAFC, and PACER dockets, has revealed no known litigation involving U.S. Patent 5,602,377.
While the current and previous assignees, Symbol Technologies, LLC and Meta Holding Corp., have been involved in various patent litigations, none of the publicly available records specifically name US 5,602,377 as a patent-in-suit. For example, Symbol Technologies was famously involved in a major declaratory judgment action against the Lemelson Foundation regarding the unenforceability of numerous patents related to bar code and machine vision technology due to prosecution laches. However, US 5,602,377 was not listed among the patents in that case.
Generated 4/28/2026, 4:52:52 AM