Portescap
Records under this name other than patents Portescap holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,509,663 | Stepping Motor Formerly held Term ended Term ended May 2, 2021 · High confidence | Term ended | Term ended May 2, 2021 | High confidence |
| US 6,809,455 | Brush Holder Comprising Brushes with Contact Tabs, Spring and Damping Element Formerly held Term ended Term ended Mar 21, 2021 · High confidence | Term ended | Term ended Mar 21, 2021 | High confidence |
| US 3,941,439 | Shock absorber bearing assembly Term ended Term ended no later than Mar 2, 1996 · Low confidence | Term ended | Term ended no later than Mar 2, 1996 | Low confidence |
| US 4,012,941 | Method of and apparatus for measuring the amplitude of oscillation of the balance of a timepiece movement Term ended Term ended no later than Mar 22, 1997 · Low confidence | Term ended | Term ended no later than Mar 22, 1997 | Low confidence |
| US 4,060,746 | Electric direct current rotating machine Term ended Term ended no later than Nov 29, 1997 · Low confidence | Term ended | Term ended no later than Nov 29, 1997 | Low confidence |
| US 4,079,279 | Electrical micromotor Term ended Term ended no later than Mar 14, 1998 · Low confidence | Term ended | Term ended no later than Mar 14, 1998 | Low confidence |
| US 4,082,970 | Direct-current motor-generator Term ended Term ended no later than Apr 4, 1998 · Low confidence | Term ended | Term ended no later than Apr 4, 1998 | Low confidence |
| US 4,083,222 | Apparatus for measuring the rate of a watch Term ended Term ended no later than Apr 11, 1998 · Low confidence | Term ended | Term ended no later than Apr 11, 1998 | Low confidence |
| US 4,084,502 | Electric acutating device Term ended Term ended no later than Apr 18, 1998 · Low confidence | Term ended | Term ended no later than Apr 18, 1998 | Low confidence |
| US 4,136,294 | Direct-current micromotor Term ended Term ended no later than Jan 23, 1999 · Low confidence | Term ended | Term ended no later than Jan 23, 1999 | Low confidence |