Shell Oil Cmpany
Records under this name other than patents Shell Oil Cmpany holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 3 of 3 · Back to Shell Oil Cmpany
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,555,260 | Method for sterilizing male parts of plants Term ended Term ended no later than Nov 26, 2005 · Low confidence | Term ended | Term ended no later than Nov 26, 2005 | Low confidence |
| US 4,570,017 | Preparation of optically-active (mixed) anhydrides and acids Term ended Term ended no later than Feb 11, 2006 · Low confidence | Term ended | Term ended no later than Feb 11, 2006 | Low confidence |
| US 5,269,632 | Method for strengthening the structural base of offshore structures Term ended Term ended no later than Dec 14, 2013 · Low confidence | Term ended | Term ended no later than Dec 14, 2013 | Low confidence |