Helpful Technologies, Inc.
Records under this name other than patents Helpful Technologies, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 7 of 7 · Back to Helpful Technologies, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,011,048 | Method and apparatus for liquid fuel preparation to improve combustion Formerly held Term ended Term ended Nov 9, 2024 · From the USPTO record | Term ended | Term ended Nov 9, 2024 | From the USPTO record |
| US 8,747,661 | Method and apparatus for oil recovery from tar sands Lapsed on the fee record Ended Jun 10, 2018 · From the USPTO record | Lapsed on the fee record | Ended Jun 10, 2018 | From the USPTO record |
| US 8,726,852 | Fuel activation method and fuel supply system Lapsed on the fee record Ended May 20, 2018 · From the USPTO record | Lapsed on the fee record | Ended May 20, 2018 | From the USPTO record |
| US 8,672,643 | Method and system for anode gas recirculation in fuel cells Lapsed on the fee record Ended Mar 18, 2018 · From the USPTO record | Lapsed on the fee record | Ended Mar 18, 2018 | From the USPTO record |
| US 8,641,020 | System for dissolving gases in fuel Lapsed on the fee record Ended Feb 4, 2018 · From the USPTO record | Lapsed on the fee record | Ended Feb 4, 2018 | From the USPTO record |
| US 8,464,694 | Method and system for providing fuel to internal combustion engines Lapsed on the fee record Ended Jun 18, 2017 · From the USPTO record | Lapsed on the fee record | Ended Jun 18, 2017 | From the USPTO record |
| US 8,459,037 | Method and system for feeding a gas-turbine engine with liquid fuel Lapsed on the fee record Ended Jun 11, 2017 · From the USPTO record | Lapsed on the fee record | Ended Jun 11, 2017 | From the USPTO record |