WRC PLC
Records under this name other than patents WRC PLC 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 WRC PLC
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,331,215 | Deployment of Equipment into Fluid Containers and Conduits Formerly held Term ended Term ended Jan 21, 2021 · High confidence | Term ended | Term ended Jan 21, 2021 | High confidence |
| US 6,889,703 | Deployment of Equipment into Fluid Containers and Conduits Formerly held Term ended Term ended Sep 7, 2020 · High confidence | Term ended | Term ended Sep 7, 2020 | High confidence |
| US 6,960,379 | Cementitious compositions and their use in corrosion protection Lapsed on the fee record Ended Nov 1, 2013 · From the USPTO record | Lapsed on the fee record | Ended Nov 1, 2013 | From the USPTO record |
| US 6,528,317 | Method of providing a detectable marker in a fluid Lapsed on the fee record Ended Mar 4, 2011 · From the USPTO record | Lapsed on the fee record | Ended Mar 4, 2011 | From the USPTO record |
| US 4,647,251 | Installation of communications cables Formerly held Term ended Term ended no later than Mar 3, 2007 · Low confidence | Term ended | Term ended no later than Mar 3, 2007 | Low confidence |
| US 5,494,581 | Treatment of water, sewage and like waste liquids Term ended Term ended no later than Feb 27, 2016 · Low confidence | Term ended | Term ended no later than Feb 27, 2016 | Low confidence |
| US 5,911,255 | Pipe cleaning method and device Term ended Term ended no later than Jun 15, 2019 · Low confidence | Term ended | Term ended no later than Jun 15, 2019 | Low confidence |
| US 5,993,114 | Apparatus and method for pipeline renovation Term ended Term ended no later than Nov 30, 2019 · Low confidence | Term ended | Term ended no later than Nov 30, 2019 | Low confidence |