STC PLC
Records under this name other than patents STC PLC holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,109,110 | Digital-to-analog converter Formerly held Term ended Term ended no later than Aug 22, 1998 · Low confidence | Term ended | Term ended no later than Aug 22, 1998 | Low confidence |
| US 4,114,990 | Liquid crystal rotator Term ended Term ended no later than Sep 19, 1998 · Low confidence | Term ended | Term ended no later than Sep 19, 1998 | Low confidence |
| US 4,116,653 | Optical fiber manufacture Term ended Term ended no later than Sep 26, 1998 · Low confidence | Term ended | Term ended no later than Sep 26, 1998 | Low confidence |
| US 4,121,195 | Error detection in digital systems Formerly held Term ended Term ended no later than Oct 17, 1998 · Low confidence | Term ended | Term ended no later than Oct 17, 1998 | Low confidence |
| US 4,166,946 | Data transmission system Term ended Term ended no later than Sep 4, 1999 · Low confidence | Term ended | Term ended no later than Sep 4, 1999 | Low confidence |
| US 4,193,034 | Radio receiver for FSK signals Formerly held Term ended Term ended no later than Mar 11, 2000 · Low confidence | Term ended | Term ended no later than Mar 11, 2000 | Low confidence |
| US 4,201,884 | Digital data transmission system Term ended Term ended no later than May 6, 2000 · Low confidence | Term ended | Term ended no later than May 6, 2000 | Low confidence |
| US 4,210,575 | Anti-corrosion compositions Term ended Term ended no later than Jul 1, 2000 · Low confidence | Term ended | Term ended no later than Jul 1, 2000 | Low confidence |
| US 4,214,293 | Electrolytic capacitors Term ended Term ended no later than Jul 22, 2000 · Low confidence | Term ended | Term ended no later than Jul 22, 2000 | Low confidence |
| US 4,217,464 | Cable anchor Term ended Term ended no later than Aug 12, 2000 · Low confidence | Term ended | Term ended no later than Aug 12, 2000 | Low confidence |