Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7192131 | Filter element carrier, filter, ink pen | Jinsong Gao, M. Derek Patton, Blair A. Butler | 2007-03-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7192131 | Filter element carrier, filter, ink pen | Jinsong Gao, M. Derek Patton, Blair A. Butler | 2007-03-20 |