Impco Technologies, Inc.
Records under this name other than patents Impco Technologies, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Impco Technologies, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,726,892 | Advanced Aluminum Alloys for Hydrogen Storage Formerly held Term ended Term ended Feb 12, 2022 · High confidence | Term ended | Term ended Feb 12, 2022 | High confidence |
| US 6,634,321 | Systems and method for storing hydrogen Formerly held Term ended Term ended Dec 14, 2020 · From the USPTO record | Term ended | Term ended Dec 14, 2020 | From the USPTO record |
| US 6,161,783 | Gaseous fuel injector Formerly held Term ended Term ended Sep 17, 2019 · From the USPTO record | Term ended | Term ended Sep 17, 2019 | From the USPTO record |
| US 6,041,762 | Control module for natural gas fuel supply for a vehicle Formerly held Term ended Term ended Aug 15, 2018 · From the USPTO record | Term ended | Term ended Aug 15, 2018 | From the USPTO record |
| US 6,026,787 | Air-fuel control for alternative engine fuels Term ended Term ended Jun 4, 2018 · From the USPTO record | Term ended | Term ended Jun 4, 2018 | From the USPTO record |
| US 6,302,383 | Tamper resistant device for engine adjuster Lapsed on the fee record Ended Oct 16, 2013 · From the USPTO record | Lapsed on the fee record | Ended Oct 16, 2013 | From the USPTO record |
| US 4,517,735 | Apparatus and method for tensioning resistive wire 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 4,523,461 | Hot wire anemometer Term ended Term ended no later than Jun 18, 2005 · Low confidence | Term ended | Term ended no later than Jun 18, 2005 | Low confidence |
| US 4,604,895 | Hot wire anemometer Term ended Term ended no later than Aug 12, 2006 · Low confidence | Term ended | Term ended no later than Aug 12, 2006 | Low confidence |
| US 4,694,811 | Air-gas mixing device with dual-control fuel valve Term ended Term ended no later than Sep 22, 2007 · Low confidence | Term ended | Term ended no later than Sep 22, 2007 | Low confidence |