The Patent Finder

Corma Inc.

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

Back to Corma Inc.

PatentTitleStatus Expires Confidence
US 7,625,196Device for manufacturing a double-walled, thermoplastic tube with a connecting sleeve
Term ended
Term ended Aug 13, 2024 · From the USPTO record
Term endedTerm ended Aug 13, 2024From the USPTO record
US 7,691,317Method and device for manufacturing a double-walled, thermoplastic tube with a connecting sleeve
Term ended
Term ended Jul 25, 2021 · From the USPTO record
Term endedTerm ended Jul 25, 2021From the USPTO record
US 6,015,282Apparatus for the production of corrugated plastic tubes
Term ended
Term ended May 19, 2018 · From the USPTO record
Term endedTerm ended May 19, 2018From the USPTO record
US 6,576,180Process for the production of corrugated plastic tubes
Term ended
Term ended May 19, 2018 · From the USPTO record
Term endedTerm ended May 19, 2018From the USPTO record
US 4,163,143Hairdressing device
Term ended
Term ended no later than Jul 31, 1999 · Low confidence
Term endedTerm ended no later than Jul 31, 1999Low confidence
US 4,180,357Apparatus and method for perforating tubing and method of producing part of such apparatus
Term ended
Term ended no later than Dec 25, 1999 · Low confidence
Term endedTerm ended no later than Dec 25, 1999Low confidence
US 4,199,314Apparatus for producing thermoplastic tubing
Term ended
Term ended no later than Apr 22, 2000 · Low confidence
Term endedTerm ended no later than Apr 22, 2000Low confidence
US 4,218,164Apparatus and method for perforating tubing
Term ended
Term ended no later than Aug 19, 2000 · Low confidence
Term endedTerm ended no later than Aug 19, 2000Low confidence
US 4,236,580Method and apparatus for sonically extracting oil well liners
Term ended
Term ended no later than Dec 2, 2000 · Low confidence
Term endedTerm ended no later than Dec 2, 2000Low confidence
US 4,292,014Feed mechanism comprising an endless member configured as a double helix
Term ended
Term ended no later than Sep 29, 2001 · Low confidence
Term endedTerm ended no later than Sep 29, 2001Low confidence
10 of 42 patents shown.
Pro members see all 42.
Pro members: see all 42 patents
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited