Devron-Hercules, Inc.
Records under this name other than patents Devron-Hercules, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 3,945,570 | Steam supply apparatus Term ended Term ended no later than Mar 23, 1996 · Low confidence | Term ended | Term ended no later than Mar 23, 1996 | Low confidence |
| US 4,114,528 | Apparatus for web caliper control Formerly held Term ended Term ended no later than Sep 19, 1998 · Low confidence | Term ended | Term ended no later than Sep 19, 1998 | Low confidence |
| US 4,268,976 | Steam distribution apparatus Term ended Term ended no later than May 26, 2001 · Low confidence | Term ended | Term ended no later than May 26, 2001 | Low confidence |
| US 4,320,583 | Steam distribution apparatus for flat paper sheet Term ended Term ended no later than Mar 23, 2002 · Low confidence | Term ended | Term ended no later than Mar 23, 2002 | Low confidence |
| US 4,351,700 | Steam distribution apparatus for the nip of two rolls Term ended Term ended no later than Sep 28, 2002 · Low confidence | Term ended | Term ended no later than Sep 28, 2002 | Low confidence |
| US 4,358,900 | Apparatus to supply steam including steam evacuation Term ended Term ended no later than Nov 16, 2002 · Low confidence | Term ended | Term ended no later than Nov 16, 2002 | Low confidence |
| US 4,378,639 | Method and apparatus for uniformly drying a continuous web of cellulosic fibers Formerly held Term ended Term ended no later than Apr 5, 2003 · Low confidence | Term ended | Term ended no later than Apr 5, 2003 | Low confidence |
| US 4,398,355 | Steam distribution apparatus Term ended Term ended no later than Aug 16, 2003 · Low confidence | Term ended | Term ended no later than Aug 16, 2003 | Low confidence |
| US 4,422,575 | Steam distributor with plug valve Term ended Term ended no later than Dec 27, 2003 · Low confidence | Term ended | Term ended no later than Dec 27, 2003 | Low confidence |
| US 4,444,622 | Steam distribution Term ended Term ended no later than Apr 24, 2004 · Low confidence | Term ended | Term ended no later than Apr 24, 2004 | Low confidence |