Long Well Electronics Corp.
Records under this name other than patents Long Well Electronics Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 10 of 10 · Back to Long Well Electronics Corp.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,646,849 | Digital power inverter and method of controlling the same Formerly held Term ended Term ended May 24, 2022 · From the USPTO record | Term ended | Term ended May 24, 2022 | From the USPTO record |
| US 6,567,922 | Pulse type activating system for power supply Lapsed on the fee record Ended May 20, 2011 · From the USPTO record | Lapsed on the fee record | Ended May 20, 2011 | From the USPTO record |
| US 6,060,861 | Car-used spare power system quick charging device Lapsed on the fee record Ended May 9, 2008 · From the USPTO record | Lapsed on the fee record | Ended May 9, 2008 | From the USPTO record |
| US 6,731,485 | Digital power inverter Lapsed on the fee record Ended May 4, 2008 · From the USPTO record | Lapsed on the fee record | Ended May 4, 2008 | From the USPTO record |
| US 6,046,908 | Heat-radiating structure of power adapter Lapsed on the fee record Ended Apr 4, 2008 · From the USPTO record | Lapsed on the fee record | Ended Apr 4, 2008 | From the USPTO record |
| US 6,553,711 | Switchable mosquito expelling/killing device Lapsed on the fee record Ended Apr 29, 2007 · From the USPTO record | Lapsed on the fee record | Ended Apr 29, 2007 | From the USPTO record |
| US 6,293,044 | Switchable mosquito expelling/killing device Lapsed on the fee record Ended Sep 25, 2005 · From the USPTO record | Lapsed on the fee record | Ended Sep 25, 2005 | From the USPTO record |
| US 6,064,448 | Induced AC power sources video amplifier Lapsed on the fee record Ended May 16, 2004 · From the USPTO record | Lapsed on the fee record | Ended May 16, 2004 | From the USPTO record |
| US 5,930,131 | Controlling device for conversion of DC power to sine wave AC power Term ended Term ended no later than Jul 27, 2019 · Low confidence | Term ended | Term ended no later than Jul 27, 2019 | Low confidence |
| US 5,990,783 | Ozone/supersonic wave insect expelling device Term ended Term ended no later than Nov 23, 2019 · Low confidence | Term ended | Term ended no later than Nov 23, 2019 | Low confidence |