Ngai; Chi Hang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ngai; Chi Hang.The latest application filed is for "gear pump".
- Ngai; Chi Hang - Hong Kong CN
| Patent | Date |
|---|---|
| Gear pump Grant 10,612,545 - Ramadoss , et al. | 2020-04-07 |
| Gear pump Grant 10,415,566 - Ramadoss , et al. Sept | 2019-09-17 |
| Gear Pump App 20190242380 - Ramadoss; Mohanlal ; et al. | 2019-08-08 |
| Gear Pump App 20160108914 - RAMADOSS; Mohanlal ; et al. | 2016-04-21 |
| Lamination Grant 8,492,953 - Lau , et al. July 23, 2 | 2013-07-23 |
| Lamination App 20080001496 - Lau; James Ching Sik ; et al. | 2008-01-03 |
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