The Patent Finder

Ambit Design Systems

Also on record
Records under this name other than patents Ambit Design Systems holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Showing 1 to 8 of 8 · Back to Ambit Design Systems

PatentTitleStatus Expires Confidence
US 6,023,566Cluster matching for circuit implementation
Formerly held
Term ended
Term ended Apr 14, 2017 · From the USPTO record
Term endedTerm ended Apr 14, 2017From the USPTO record
US 6,672,776Delay estimation for restructuring
Formerly held
Term ended
Term ended Mar 14, 2017 · From the USPTO record
Term endedTerm ended Mar 14, 2017From the USPTO record
US 6,401,231Method and apparatus for performing both negative and positive slack time budgeting and for determining a definite required constraint during integrated circuit design
Formerly held
Lapsed on the fee record
Ended Jun 4, 2014 · From the USPTO record
Lapsed on the fee recordEnded Jun 4, 2014From the USPTO record
US 5,254,942Single chip IC tester architecture
Formerly held
Term ended
Term ended no later than Oct 19, 2013 · Low confidence
Term endedTerm ended no later than Oct 19, 2013Low confidence
US 5,396,170Single chip IC tester architecture
Formerly held
Term ended
Term ended no later than Mar 7, 2015 · Low confidence
Term endedTerm ended no later than Mar 7, 2015Low confidence
US 5,675,545Method of forming a database that defines an integrated circuit memory with built in test circuitry
Formerly held
Term ended
Term ended no later than Oct 7, 2017 · Low confidence
Term endedTerm ended no later than Oct 7, 2017Low confidence
US 5,892,687Don't.sub.-- care logic
Formerly held
Term ended
Term ended no later than Apr 6, 2019 · Low confidence
Term endedTerm ended no later than Apr 6, 2019Low confidence
US 5,991,524Cluster determination for circuit implementation
Formerly held
Term ended
Term ended no later than Nov 23, 2019 · Low confidence
Term endedTerm ended no later than Nov 23, 2019Low confidence
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited