Chen; Li-Qiang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Li-Qiang.The latest application filed is for "membrane circuit board and manufacturing method thereof".
- Chen; Li-Qiang - Taipei TW
- Chen; Li-Qiang - Sujhou CN
| Patent | Date |
|---|---|
| Key structure Grant 11,450,492 - Chu , et al. September 20, 2 | 2022-09-20 |
| Membrane Circuit Board And Manufacturing Method Thereof App 20220068575 - Cai; Liu-Bing ; et al. | 2022-03-03 |
| Keyboard device and key structure thereof Grant 11,204,651 - Cai , et al. December 21, 2 | 2021-12-21 |
| Key structure Grant 11,094,479 - Chu , et al. August 17, 2 | 2021-08-17 |
| Keyboard Device And Key Structure Thereof App 20210181861 - Cai; Liu-Bing ; et al. | 2021-06-17 |
| Rotary switch structure Grant 10,903,028 - Cai , et al. January 26, 2 | 2021-01-26 |
| Rotary Switch Structure App 20200312589 - Cai; Liu-Bing ; et al. | 2020-10-01 |
| Portable storage device Grant D522,506 - Chen June 6, 2 | 2006-06-06 |
| Flash memory drive Grant D514,559 - Chen February 7, 2 | 2006-02-07 |
| Mobile phone Grant D507,254 - Chen July 12, 2 | 2005-07-12 |
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