Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6162362 | Direct screw-on cartridge holder with self-adjustable connection | Qi Ma | 2000-12-19 |
| 5863428 | Guard cartridge for chromatography | Qi Ma, Iraj Aghazade Mohandesi | 1999-01-26 |