Co.-Tech Development Corp.
Records under this name other than the patents Co.-Tech Development Corp. 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 8 patents it holds.
Back to Co.-Tech Development Corp.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,948,392 | Inertia drive torque transmission level control and engine starter incorporating same Term ended Term ended Apr 23, 2023 · From the USPTO record | Term ended | Term ended Apr 23, 2023 | From the USPTO record |
| US 8,172,017 | Circumferential movement device Lapsed on the fee record Ended May 8, 2020 · From the USPTO record | Lapsed on the fee record | Ended May 8, 2020 | From the USPTO record |
| US 7,544,656 | Long acting injectable insulin composition and methods of making and using thereof Lapsed on the fee record Ended Jun 9, 2013 · From the USPTO record | Lapsed on the fee record | Ended Jun 9, 2013 | From the USPTO record |
| US 3,959,711 | Pulse width modulated power supplies Term ended Term ended no later than May 25, 1996 · Low confidence | Term ended | Term ended no later than May 25, 1996 | Low confidence |
| US 4,008,983 | Tip turbine inflating device with motor-actuated closure at inlet Term ended Term ended no later than Feb 22, 1997 · Low confidence | Term ended | Term ended no later than Feb 22, 1997 | Low confidence |
| US 4,119,797 | Voice operated switch having an activation level which is higher than its sustaining level Term ended Term ended no later than Oct 10, 1998 · Low confidence | Term ended | Term ended no later than Oct 10, 1998 | Low confidence |
| US 4,123,622 | Protective cover for sound transducers located in face masks of divers Term ended Term ended no later than Oct 31, 1998 · Low confidence | Term ended | Term ended no later than Oct 31, 1998 | Low confidence |
| US 4,207,568 | Underwater communications system Term ended Term ended no later than Jun 10, 2000 · Low confidence | Term ended | Term ended no later than Jun 10, 2000 | Low confidence |
| US 4,494,499 | System and apparatus providing a two step starting cycle for diesel engines using a pneumatic starter Term ended Term ended no later than Jan 22, 2005 · Low confidence | Term ended | Term ended no later than Jan 22, 2005 | Low confidence |
| US 4,507,047 | Hoop turbine Term ended Term ended no later than Mar 26, 2005 · Low confidence | Term ended | Term ended no later than Mar 26, 2005 | Low confidence |