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Patent applications and USPTO patent grants for Chen; Shui-Ching.The latest application filed is for "circuit board positioning device for electric actuator".
Patent | Date |
---|---|
Circuit Board Positioning Device For Electric Actuator App 20210025511 - Chen; Shui-Ching | 2021-01-28 |
Electric valve actuator Grant 9,568,116 - Chen February 14, 2 | 2017-02-14 |
Electric Valve Actuator App 20160053913 - Chen; Shui-Ching | 2016-02-25 |
Electrical drive apparatus for valves Grant 8,382,621 - Chen February 26, 2 | 2013-02-26 |
Electrical Drive Apparatus For Valves App 20120135833 - CHEN; Shui-Ching | 2012-05-31 |
Position Restoring Apparatus For An Open And Close Device App 20080121829 - CHEN; SHUI-CHING | 2008-05-29 |
Position restoring apparatus for an open and close device Grant 7,377,479 - Chen May 27, 2 | 2008-05-27 |
Electric driving device for a valve Grant 7,192,004 - Chen March 20, 2 | 2007-03-20 |
Position return device for an open and close apparatus Grant 7,182,310 - Chen February 27, 2 | 2007-02-27 |
Position Return Device For An Open And Close Apparatus App 20060289820 - Chen; Shui-Ching | 2006-12-28 |
Electric driving device for a valve App 20060273273 - Chen; Shui-Ching | 2006-12-07 |
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