Stemmann-Technik GmbH
Records under this name other than the patents Stemmann-Technik GmbH 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 7 patents it holds.
Showing 1 to 6 of 6 · Back to Stemmann-Technik GmbH
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,796,410 | Arrangement for relative displacement of a current collector relative to a trolley wire Term ended Term ended Jan 24, 2023 · From the USPTO record | Term ended | Term ended Jan 24, 2023 | From the USPTO record |
| US 6,480,348 | Arrangement for the contactless transmission of optical data Term ended Term ended Dec 18, 2020 · From the USPTO record | Term ended | Term ended Dec 18, 2020 | From the USPTO record |
| US 9,180,954 | Power supply device Lapsed on the fee record Ended Nov 10, 2019 · From the USPTO record | Lapsed on the fee record | Ended Nov 10, 2019 | From the USPTO record |
| US 8,499,910 | Device for transmitting electrical energy Lapsed on the fee record Ended Aug 6, 2017 · From the USPTO record | Lapsed on the fee record | Ended Aug 6, 2017 | From the USPTO record |
| US 6,162,993 | Signal conductor Lapsed on the fee record Ended Dec 19, 2008 · From the USPTO record | Lapsed on the fee record | Ended Dec 19, 2008 | From the USPTO record |
| US 5,399,094 | Device for digital data transmission Term ended Term ended no later than Mar 21, 2015 · Low confidence | Term ended | Term ended no later than Mar 21, 2015 | Low confidence |