The Patent Finder

Draft Systems, Inc.

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

Back to Draft Systems, Inc.

PatentTitleStatus Expires Confidence
US 4,135,641Apparatus and methods for dispensing fluid under pressure
Formerly held
Term ended
Term ended no later than Jan 23, 1999 · Low confidence
Term endedTerm ended no later than Jan 23, 1999Low confidence
US 4,159,102Locking mechanism for coupler and valve assembly
Formerly held
Term ended
Term ended no later than Jun 26, 1999 · Low confidence
Term endedTerm ended no later than Jun 26, 1999Low confidence
US 4,181,143Valve assembly and coupler therefor
Formerly held
Term ended
Term ended no later than Jan 1, 2000 · Low confidence
Term endedTerm ended no later than Jan 1, 2000Low confidence
US 4,210,172Apparatus for dispensing fluid under pressure
Formerly held
Term ended
Term ended no later than Jul 1, 2000 · Low confidence
Term endedTerm ended no later than Jul 1, 2000Low confidence
US 4,219,040Rupture disc safety valve
Term ended
Term ended no later than Aug 26, 2000 · Low confidence
Term endedTerm ended no later than Aug 26, 2000Low confidence
US 4,305,421Fluid dispensing system
Formerly held
Term ended
Term ended no later than Dec 15, 2001 · Low confidence
Term endedTerm ended no later than Dec 15, 2001Low confidence
US 4,343,325Valve assembly and coupler therefor
Formerly held
Term ended
Term ended no later than Aug 10, 2002 · Low confidence
Term endedTerm ended no later than Aug 10, 2002Low confidence
US 4,349,136Safety pressure reducing regulator
Formerly held
Term ended
Term ended no later than Sep 14, 2002 · Low confidence
Term endedTerm ended no later than Sep 14, 2002Low confidence
US 4,416,430Load lowering device
Term ended
Term ended no later than Nov 22, 2003 · Low confidence
Term endedTerm ended no later than Nov 22, 2003Low confidence
US 4,449,412Safety pressure gage
Term ended
Term ended no later than May 22, 2004 · Low confidence
Term endedTerm ended no later than May 22, 2004Low confidence
10 of 21 patents shown.
Pro members see all 21.
Pro members: see all 21 patents
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