The Patent Finder

Neutronics, Inc.

Also on record
Records under this name other than patents Neutronics, Inc. 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 Neutronics, Inc.

PatentTitleStatus Expires Confidence
US 6,889,537Method of Refrigerant Leak Sealant Additive Detection
Lapsed on the fee record
Ended May 10, 2013 · High confidence
Lapsed on the fee recordEnded May 10, 2013High confidence
US 6,810,714Device and Method for Refrigerant Leak Sealant Additive Detection
Lapsed on the fee record
Ended Nov 2, 2012 · High confidence
Lapsed on the fee recordEnded Nov 2, 2012High confidence
US 4,476,688Refrigerant recovery and purification system
Term ended
Term ended no later than Oct 16, 2004 · Low confidence
Term endedTerm ended no later than Oct 16, 2004Low confidence
US 4,539,817Refrigerant recovery and charging device
Term ended
Term ended no later than Sep 10, 2005 · Low confidence
Term endedTerm ended no later than Sep 10, 2005Low confidence
US 4,939,903Refrigerant recovery and purification system and method
Term ended
Term ended no later than Jul 10, 2010 · Low confidence
Term endedTerm ended no later than Jul 10, 2010Low confidence
US 5,034,039Filter dehydrator device
Term ended
Term ended no later than Jul 23, 2011 · Low confidence
Term endedTerm ended no later than Jul 23, 2011Low confidence
US 5,610,398System and method for identifying automotive and commercial refrigerants
Term ended
Term ended no later than Mar 11, 2017 · Low confidence
Term endedTerm ended no later than Mar 11, 2017Low confidence
US D290,491Freon recovery and purification unit
Term ended
Term ended
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