YIP; Po Chun
Patent Applications and Registrations
Patent applications and USPTO patent grants for YIP; Po Chun.The latest application filed is for "dual fluid channel vacuum apparatus".
- YIP; Po Chun - Hong Kong CN
- Yip; Po Chun - Tsuenwan HK
- Yip; Po Chun - Singapore SG
| Patent | Date |
|---|---|
| Dual Fluid Channel Vacuum Apparatus App 20180184866 - GEBHARD; Albert W. ; et al. | 2018-07-05 |
| Air freshener enhancer with improved air flow and with height adjustable stand Grant 9,889,220 - Yip , et al. February 13, 2 | 2018-02-13 |
| Tea Bag with Accessible Opening App 20180029789 - Yip; Po Chun ; et al. | 2018-02-01 |
| Multi-fragrance scent dispenser Grant 6,950,607 - Yip , et al. September 27, 2 | 2005-09-27 |
| Multi-fragrance scent dispenser App 20050094988 - Yip, Po Chun ; et al. | 2005-05-05 |
| Multi-fragrance scent dispenser Grant 6,859,615 - Yip , et al. February 22, 2 | 2005-02-22 |
| Multi-fragrance scent dispenser App 20040247301 - Yip, Po Chun ; et al. | 2004-12-09 |
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