Ma, Qi-Feng
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ma, Qi-Feng.The latest application filed is for "wallless monolith columns for chromatography".
- Ma, Qi-Feng - Rancho Palos Verdes CA
- Ma, Qi-Feng - US
| Patent | Date |
|---|---|
| Wallless monolith columns for chromatography App 20050155933 - Ma, Qi-Feng | 2005-07-21 |
| Flow-diverting rotary valves of multiple paths Grant 6,904,936 - Ma June 14, 2 | 2005-06-14 |
| Simulated moving bed chromatographic focusing Grant 6,805,799 - Ma October 19, 2 | 2004-10-19 |
| Simulated moving bed chromatographic focusing App 20040118781 - Ma, Qi-Feng | 2004-06-24 |
| Curved-film mold for preparation of electrophoresis gels App 20040079641 - Ma, Qi-Feng | 2004-04-29 |
| Flow-diverting rotary valves of multiple paths App 20030196713 - Ma, Qi-Feng | 2003-10-23 |
| Guard cartridge for chromatography Grant 5,863,428 - Ma , et al. January 26, 1 | 1999-01-26 |
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