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Patent applications and USPTO patent grants for Ji; Rujun.The latest application filed is for "methods and apparatus to determine a position of a rotatable shaft of a motor".
Patent | Date |
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Methods And Apparatus To Determine A Position Of A Rotatable Shaft Of A Motor App 20210302209 - Ji; Rujun ;   et al. | 2021-09-30 |
Methods and apparatus to determine a position of a rotatable shaft of a motor Grant 11,060,889 - Ji , et al. July 13, 2 | 2021-07-13 |
Bi-Directional Electric Energy Meter App 20210102980 - Ji; Rujun ;   et al. | 2021-04-08 |
Bi-directional electric energy meter Grant 10,901,016 - Ji , et al. January 26, 2 | 2021-01-26 |
Capacitive-sensing Rotary Encoders And Methods App 20200264015 - CHENG; Lichang ;   et al. | 2020-08-20 |
Capacitive-sensing rotary encoders and methods Grant 10,684,143 - Cheng , et al. | 2020-06-16 |
Bi-Directional Electric Energy Meter App 20200049746 - Ji; Rujun ;   et al. | 2020-02-13 |
Bi-directional electric energy meter Grant 10,488,448 - Ji , et al. Nov | 2019-11-26 |
Bi-Directional Electric Energy Meter App 20190072593 - Ji; Rujun ;   et al. | 2019-03-07 |
Bi-directional electric energy meter Grant 10,156,598 - Ji , et al. Dec | 2018-12-18 |
Capacitive-sensing Rotary Encoders And Methods App 20180328762 - CHENG; Lichang ;   et al. | 2018-11-15 |
Methods And Apparatus To Determine A Position Of A Rotatable Shaft Of A Motor App 20180328760 - JI; Rujun ;   et al. | 2018-11-15 |
Bi-Directional Electric Energy Meter App 20170269135 - Ji; Rujun ;   et al. | 2017-09-21 |
Bi-directional electric energy meter Grant 9,702,912 - Ji , et al. July 11, 2 | 2017-07-11 |
Bi-directional Electric Energy Meter App 20160187400 - JI; Rujun ;   et al. | 2016-06-30 |
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