Engineering System Co., Ltd.
Records under this name other than the patents Engineering System Co., Ltd. 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 1 patents it holds.
Back to Engineering System Co., Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,182,627 | Liquid-discharging device with observation optical system Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 10,221,060 | Microvolume-Liquid Dispensing Method and Microvolume-Liquid Dispenser Formerly held In force · High confidence | In force | High confidence | |
| US 10,682,664 | Microvolume-liquid application method and microvolume-liquid dispenser Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 6,293,492 | Coaxial twin-rotor type helicopter Term ended Term ended Sep 1, 2019 · From the USPTO record | Term ended | Term ended Sep 1, 2019 | From the USPTO record |
| US 4,022,038 | Magnetically operated locking device and key Term ended Term ended no later than May 10, 1997 · Low confidence | Term ended | Term ended no later than May 10, 1997 | Low confidence |
| US 4,023,157 | Theft alarm for portable articles Term ended Term ended no later than May 10, 1997 · Low confidence | Term ended | Term ended no later than May 10, 1997 | Low confidence |
| US 4,097,809 | Local event broadcast system Term ended Term ended no later than Jun 27, 1998 · Low confidence | Term ended | Term ended no later than Jun 27, 1998 | Low confidence |
| US 4,106,442 | Device for increasing fuel economy of an internal combustion engine Term ended Term ended no later than Aug 15, 1998 · Low confidence | Term ended | Term ended no later than Aug 15, 1998 | Low confidence |
| US 4,117,462 | Ultrasonic transmitter for burglar alarm system 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 4,164,911 | Apparatus for re-inking printing ribbons Term ended Term ended no later than Aug 21, 1999 · Low confidence | Term ended | Term ended no later than Aug 21, 1999 | Low confidence |