Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12409423 | Porous polyethylene filter membrane with asymmetric pore structure, and related filters and methods | Rajni PATEL, Maybelle Woo, Puth Proeung | 2025-09-09 |
| 11890582 | Highly retentive polyamide hollow fiber membranes produced via controlled shrinkage | Maybelle Woo, Jeffrey E. Townley | 2024-02-06 |
| 11772020 | High capacity composite depth filter media with low extractables | Maybelle Woo, David Yavorsky, John P. Amara, Nripen Singh | 2023-10-03 |
| 11701623 | Method of forming a laminated single layer composite membrane | Dongzhu Wu, Rajnikant Patel, Tony Yu, Puth Proeung, Maybelle Woo | 2023-07-18 |
| 11660555 | High capacity composite depth filter media with low extractables | Maybelle Woo, David Yavorksy, John P. Amara, Nripen Singh | 2023-05-30 |
| 11504646 | Depth filters for disposable biotechnological processes | Nripen Singh | 2022-11-22 |
| 11439933 | High capacity composite depth filter media with low extractables | Maybelle Woo, David Yavorsky, John P. Amara, Nripen Singh | 2022-09-13 |
| 11413586 | Polyamide coated filter membrane, filters, and methods | Jad Jaber, Saksatha Ly | 2022-08-16 |
| 10786754 | Depth filters for disposable biotechnological processes | Nripen Singh | 2020-09-29 |
| 9067976 | Asymmetric porous adsorptive bead | Senthilkumar Ramaswamy, Chen Wang, Nanying Bian, Brian Gagnon, Joaquin Umana +3 more | 2015-06-30 |
| 8652330 | Asymmetric porous adsorptive bead | Senthilkumar Ramaswamy, Chen Wang, Nanying Bian, Brian Gagnon, Joaquin Umana +3 more | 2014-02-18 |
| 8177537 | Method and apparatus for making porous agarose beads | Senthilkumar Ramaswamy, Nanying Bian, Brian Gagnon, Umana Joaquin, Neil Soice | 2012-05-15 |
| 8091618 | Exchange apparatus | Cha P. Doh, Alicia Briggs LaForge | 2012-01-10 |
| 7717405 | Hollow fiber membrane contact apparatus and process | Bipin Parekh, Rajnikant Patel | 2010-05-18 |
| 7678302 | Method and apparatus for making porous agarose beads | Senthilkumar Ramaswamy, Nanying Bian, Brian Gagnon, Joaquin Umana, Neil Soice | 2010-03-16 |
| 7678269 | Asymmetric porous adsorptive bead | Senthilkumar Ramaswamy, Chen Wang, Nanying Bian, Brian Gagnon, Joaquin Umana +3 more | 2010-03-16 |
| 7347937 | Perfluorinated thermoplastic filter cartridge | Cha P. Doh, Larry Y. Yen, Rajnikant Patel, T. Dean Gates | 2008-03-25 |
| 7308932 | Exchange apparatus | Cha P. Doh, Alicia Briggs LaForge | 2007-12-18 |
| 6977043 | Skinned hollow fiber membrane and method of manufacture | T. Dean Gates, Larry Y. Yen, Rajnikant Patel | 2005-12-20 |
| 6921482 | Skinned hollow fiber membrane and method of manufacture | T. Dean Gates, Larry Y. Yen, Rajnikant Patel | 2005-07-26 |
| 6805731 | Hollow fiber membrane contactor | Cha P. Doh | 2004-10-19 |
| 6802972 | Microporous hollow fiber membranes from perfluorinated thermoplastic polymers | Rajnikant Patel, T. Dean Gates | 2004-10-12 |
| 6802973 | Microporous hollow fiber membranes from perfluorinated thermoplastic polymers | Rajnikant Patel, T. Dean Gates | 2004-10-12 |
| 6663745 | Method for manufacturing hollow fiber membranes | Cha P. Doh | 2003-12-16 |
| 6582496 | Hollow fiber membrane contactor | Cha P. Doh | 2003-06-24 |