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Patent applications and USPTO patent grants for Shum; Po Wan.The latest application filed is for "cerium oxide coating, its preparation and use".
Patent | Date |
---|---|
Cerium oxide coating, its preparation and use Grant 11,453,941 - Li , et al. September 27, 2 | 2022-09-27 |
Homogeneous and transparent protective coatings for precious metals and copper alloys Grant 11,365,481 - Li , et al. June 21, 2 | 2022-06-21 |
Apparatus and method for testing performance of an electrosurgical tool Grant 10,551,282 - Li , et al. Fe | 2020-02-04 |
Cerium Oxide Coating, Its Preparation And Use App 20180245203 - Li; Kwok Yan ;   et al. | 2018-08-30 |
Apparatus And Method For Testing Performance Of An Electrosurgical Tool App 20180231436 - Li; Kwok Yan ;   et al. | 2018-08-16 |
Homogeneous And Transparent Protective Coatings For Precious Metals And Copper Alloys App 20170096739 - LI; KWOK YAN ;   et al. | 2017-04-06 |
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