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Patent applications and USPTO patent grants for Cheng; Chun Sing.The latest application filed is for "method and an apparatus for use in an electric circuit".
Patent | Date |
---|---|
Efficient battery tester Grant 10,866,285 - Cheng , et al. December 15, 2 | 2020-12-15 |
Method and an apparatus for use in an electric circuit Grant 10,761,123 - Chung , et al. Sep | 2020-09-01 |
Method And An Apparatus For Use In An Electric Circuit App 20190271726 - Chung; Shu Hung Henry ;   et al. | 2019-09-05 |
Efficient Battery Tester App 20190250217 - Cheng; Chun Sing ;   et al. | 2019-08-15 |
Efficient battery tester Grant 10,295,611 - Cheng , et al. | 2019-05-21 |
Efficient Battery Tester App 20160363634 - Cheng; Chun Sing ;   et al. | 2016-12-15 |
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