Technisand, Inc.
Records under this name other than patents Technisand, 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 7,049,272 | Downhole chemical delivery system for oil and gas wells Term ended Term ended May 23, 2023 · From the USPTO record | Term ended | Term ended May 23, 2023 | From the USPTO record |
| US 6,372,678 | Proppant Composition for Gas and Oil Well L Fracturing Formerly held Term ended Term ended Sep 18, 2021 · High confidence | Term ended | Term ended Sep 18, 2021 | High confidence |
| US 6,328,105 | Proppant containing bondable particles and removable particles Term ended Term ended Jul 14, 2020 · From the USPTO record | Term ended | Term ended Jul 14, 2020 | From the USPTO record |
| US 6,114,410 | Proppant containing bondable particles and removable particles Term ended Term ended Aug 4, 2018 · From the USPTO record | Term ended | Term ended Aug 4, 2018 | From the USPTO record |
| US 6,380,138 | Injection molded degradable casing perforation ball sealers fluid loss additive and method of use Formerly held Term ended Term ended Apr 6, 2018 · From the USPTO record | Term ended | Term ended Apr 6, 2018 | From the USPTO record |
| US 6,279,656 | Downhole chemical delivery system for oil and gas wells Formerly held Lapsed on the fee record Ended Aug 28, 2009 · From the USPTO record | Lapsed on the fee record | Ended Aug 28, 2009 | From the USPTO record |
| US 4,518,039 | Method for treating subterranean formations Formerly held Term ended Term ended no later than May 21, 2005 · Low confidence | Term ended | Term ended no later than May 21, 2005 | Low confidence |
| US 4,527,627 | Method of acidizing propped fractures Formerly held Term ended Term ended no later than Jul 9, 2005 · Low confidence | Term ended | Term ended no later than Jul 9, 2005 | Low confidence |
| US 4,553,596 | Well completion technique Formerly held Term ended Term ended no later than Nov 19, 2005 · Low confidence | Term ended | Term ended no later than Nov 19, 2005 | Low confidence |
| US 4,585,064 | High strength particulates Formerly held Term ended Term ended no later than Apr 29, 2006 · Low confidence | Term ended | Term ended no later than Apr 29, 2006 | Low confidence |