Engineering Co., Ltd.
Records under this name other than patents Engineering Co., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,388,926 | Connecting device of large-diameter compressed air conveying pipe Lapsed on the fee record Ended Jul 12, 2020 · From the USPTO record | Lapsed on the fee record | Ended Jul 12, 2020 | From the USPTO record |
| US 7,238,889 | Integrated cable management stay Lapsed on the fee record Ended Jul 3, 2015 · From the USPTO record | Lapsed on the fee record | Ended Jul 3, 2015 | From the USPTO record |
| US 6,536,719 | Single-handed cord/cable management device Lapsed on the fee record Ended Mar 25, 2015 · From the USPTO record | Lapsed on the fee record | Ended Mar 25, 2015 | From the USPTO record |
| US 6,501,153 | Semiconductor Device and Drive Circuit Using the Semiconductor Devices Formerly held Lapsed on the fee record Ended Dec 31, 2010 · High confidence | Lapsed on the fee record | Ended Dec 31, 2010 | High confidence |
| US 4,374,705 | Distillation for alcohol Term ended Term ended no later than Feb 22, 2003 · Low confidence | Term ended | Term ended no later than Feb 22, 2003 | Low confidence |
| US 4,613,914 | Auto-tracking method and apparatus of a magnetic recording/reproducing apparatus Term ended Term ended no later than Sep 23, 2006 · Low confidence | Term ended | Term ended no later than Sep 23, 2006 | Low confidence |
| US 4,851,605 | Process for synthesizing a zeolite catalyst on a pH controlled sodium free basis Term ended Term ended no later than Jul 25, 2009 · Low confidence | Term ended | Term ended no later than Jul 25, 2009 | Low confidence |
| US 5,133,690 | Booth with controlled environment for aircraft maintenance Term ended Term ended no later than Jul 28, 2012 · Low confidence | Term ended | Term ended no later than Jul 28, 2012 | Low confidence |
| US 5,248,341 | Robotic carrier mechanism for aircraft maintenance Formerly held Term ended Term ended no later than Sep 28, 2013 · Low confidence | Term ended | Term ended no later than Sep 28, 2013 | Low confidence |
| US 5,259,741 | Rotary drainage pump lubrication device and separator Term ended Term ended no later than Nov 9, 2013 · Low confidence | Term ended | Term ended no later than Nov 9, 2013 | Low confidence |