Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10677017 | System and methodology for utilizing a flow control valve | Michael Hui Du | 2020-06-09 |
| 7640990 | Flow control valve for injection systems | Donald W. Ross | 2010-01-05 |
| 7594542 | Alternate path indexing device | Donald W. Ross, David Reed | 2009-09-29 |