Edwards Engineering Corp.
Records under this name other than patents Edwards Engineering Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Edwards Engineering Corp.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,286,316 | System for recovering and utilizing vapor Lapsed on the fee record Ended Sep 11, 2005 · From the USPTO record | Lapsed on the fee record | Ended Sep 11, 2005 | From the USPTO record |
| US 4,027,495 | Vapor recovery system for volatile liquids and vapor condensing apparatus for use therein Term ended Term ended no later than Jun 7, 1997 · Low confidence | Term ended | Term ended no later than Jun 7, 1997 | Low confidence |
| US 4,068,710 | Vapor condenser for vapor recovery systems Term ended Term ended no later than Jan 17, 1998 · Low confidence | Term ended | Term ended no later than Jan 17, 1998 | Low confidence |
| US 4,077,789 | Vapor condensing and recovery assembly including a decanter for vapor recovery system Term ended Term ended no later than Mar 7, 1998 · Low confidence | Term ended | Term ended no later than Mar 7, 1998 | Low confidence |
| US 4,083,227 | Hydrocarbon vapor analyzer Term ended Term ended no later than Apr 11, 1998 · Low confidence | Term ended | Term ended no later than Apr 11, 1998 | Low confidence |
| US 4,286,653 | Coaxial tube in tube heat exchanger with inner tube support Term ended Term ended no later than Sep 1, 2001 · Low confidence | Term ended | Term ended no later than Sep 1, 2001 | Low confidence |
| US 4,380,912 | Double wall tube assembly for use in heat exchangers Term ended Term ended no later than Apr 26, 2003 · Low confidence | Term ended | Term ended no later than Apr 26, 2003 | Low confidence |
| US 4,502,920 | Apparatus for aboveground separation, vaporization and recovery of oil from oil shale Term ended Term ended no later than Mar 5, 2005 · Low confidence | Term ended | Term ended no later than Mar 5, 2005 | Low confidence |
| US 4,534,849 | Method for aboveground separation, vaporization and recovery of oil from oil shale Term ended Term ended no later than Aug 13, 2005 · Low confidence | Term ended | Term ended no later than Aug 13, 2005 | Low confidence |
| US 4,600,476 | Apparatus for aboveground separation, vaporization and recovery of oil from oil shale Term ended Term ended no later than Jul 15, 2006 · Low confidence | Term ended | Term ended no later than Jul 15, 2006 | Low confidence |