Shih; Yi-Chieh
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shih; Yi-Chieh.The latest application filed is for "low-wear screw structure".
- Shih; Yi-Chieh - Kaohsiung TW
- SHIH; Yi-Chieh - Kaohsiung City TW
| Patent | Date |
|---|---|
| Wood screw structure Grant 11,371,547 - Shih June 28, 2 | 2022-06-28 |
| Self-drilling screw structure Grant 11,371,546 - Shih June 28, 2 | 2022-06-28 |
| Low-wear Screw Structure App 20220090621 - SHIH; Yi-Chieh | 2022-03-24 |
| Fast Chip Removal Reaming Screw App 20210372455 - SHIH; Yi-Chieh | 2021-12-02 |
| Wood Screw Structure App 20210140462 - SHIH; Yi-Chieh | 2021-05-13 |
| Self-drilling Screw Structure App 20210123469 - SHIH; Yi-Chieh | 2021-04-29 |
| Self-tapping screw head structure Grant 10,480,562 - Shih Nov | 2019-11-19 |
| Self-tapping Screw Head Structure App 20190186527 - SHIH; Yi-Chieh | 2019-06-20 |
| Flooring screw Grant 9,970,470 - Shih May 15, 2 | 2018-05-15 |
| Hole expanding screw Grant 9,850,935 - Shih December 26, 2 | 2017-12-26 |
| Hole Expanding Screw App 20170241463 - SHIH; Yi-Chieh | 2017-08-24 |
| Flooring Screw App 20170227039 - SHIH; YI-CHIEH | 2017-08-10 |
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