PropTester, Inc.
Records under this name other than the patents PropTester, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 3 patents it holds.
Showing 1 to 2 of 2 · Back to PropTester, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,121,156 | Proppant sampling Term ended Term ended Jan 31, 2025 · From the USPTO record | Term ended | Term ended Jan 31, 2025 | From the USPTO record |
| US 8,286,514 | Conductivity cell piston extractor and method Lapsed on the fee record Ended Oct 16, 2020 · From the USPTO record | Lapsed on the fee record | Ended Oct 16, 2020 | From the USPTO record |