Chan; Andy Yu Sang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chan; Andy Yu Sang.The latest application filed is for "multi-valve pump head".
- Chan; Andy Yu Sang - Chai Wan HK
- Chan; Andy Yu Sang - Kowloon Bay HK
| Patent | Date |
|---|---|
| Multi-valve Pump Head App 20220258701 - Park; Stephen C. ; et al. | 2022-08-18 |
| Multi-valve pump head Grant 11,235,738 - Park , et al. February 1, 2 | 2022-02-01 |
| Multi-valve Pump Head App 20210190220 - Park; Stephen C. ; et al. | 2021-06-24 |
| Flexible U-lock Grant 9,376,841 - Chan June 28, 2 | 2016-06-28 |
| Flexible U-lock App 20150059420 - Chan; Andy Yu Sang | 2015-03-05 |
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