Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7347937 | Perfluorinated thermoplastic filter cartridge | Kwok-Shun Cheng, Cha P. Doh, Larry Y. Yen, Rajnikant Patel | 2008-03-25 |
| 6977043 | Skinned hollow fiber membrane and method of manufacture | Kwok-Shun Cheng, Larry Y. Yen, Rajnikant Patel | 2005-12-20 |
| 6921482 | Skinned hollow fiber membrane and method of manufacture | Kwok-Shun Cheng, Larry Y. Yen, Rajnikant Patel | 2005-07-26 |
| 6802972 | Microporous hollow fiber membranes from perfluorinated thermoplastic polymers | Kwok-Shun Cheng, Rajnikant Patel | 2004-10-12 |
| 6802973 | Microporous hollow fiber membranes from perfluorinated thermoplastic polymers | Kwok-Shun Cheng, Rajnikant Patel | 2004-10-12 |