James WALKER
Records under this name other than patents James WALKER 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 James WALKER
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,864,081 | Real-time incident reporting and alert system Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 11,304,047 | Real-time incident reporting and alert system Lapsed on the fee record Ended Apr 12, 2026 · From the USPTO record | Lapsed on the fee record | Ended Apr 12, 2026 | From the USPTO record |
| US 9,261,195 | Energised seal Lapsed on the fee record Ended Feb 16, 2024 · From the USPTO record | Lapsed on the fee record | Ended Feb 16, 2024 | From the USPTO record |
| US 8,998,174 | Diaphragm for a valve Lapsed on the fee record Ended Apr 7, 2019 · From the USPTO record | Lapsed on the fee record | Ended Apr 7, 2019 | From the USPTO record |
| US 6,578,647 | Sealing structure for a rock drill bit Lapsed on the fee record Ended Jun 17, 2015 · From the USPTO record | Lapsed on the fee record | Ended Jun 17, 2015 | From the USPTO record |
| US 6,357,540 | Rotary drill bit with lip seal in roller cone bit Lapsed on the fee record Ended Mar 19, 2010 · From the USPTO record | Lapsed on the fee record | Ended Mar 19, 2010 | From the USPTO record |
| US 4,624,880 | Shaped article of composition comprising thermoplastic synthetic resin and cellular material and method of producing same Term ended Term ended no later than Nov 25, 2006 · Low confidence | Term ended | Term ended no later than Nov 25, 2006 | Low confidence |
| US 4,890,849 | Shaft seals Term ended Term ended no later than Jan 2, 2010 · Low confidence | Term ended | Term ended no later than Jan 2, 2010 | Low confidence |