Subsurface Technologies, Inc.
Records under this name other than the patents Subsurface Technologies, 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 5 of 5 · Back to Subsurface Technologies, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,270,179 | Method for stimulation of liquid flow in a well Term ended Term ended Aug 13, 2022 · From the USPTO record | Term ended | Term ended Aug 13, 2022 | From the USPTO record |
| US 7,677,318 | Well maintenance equipment and procedure Term ended Term ended Jun 29, 2020 · From the USPTO record | Term ended | Term ended Jun 29, 2020 | From the USPTO record |
| US 7,337,845 | Well maintenance equipment and procedure Term ended Term ended Jun 20, 2020 · From the USPTO record | Term ended | Term ended Jun 20, 2020 | From the USPTO record |
| US 6,505,681 | Rehabilitation of landfill gas recovery wells Lapsed on the fee record Ended Jan 14, 2015 · From the USPTO record | Lapsed on the fee record | Ended Jan 14, 2015 | From the USPTO record |
| US 6,338,386 | Rehabilitation of landfill gas recovery wells Lapsed on the fee record Ended Jan 15, 2014 · From the USPTO record | Lapsed on the fee record | Ended Jan 15, 2014 | From the USPTO record |