Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371916 | Segmented valve packing gland | John D. Kelley | 2016-06-21 |
| 8251086 | Rotary gate valve with secondary seal | Johnny Ellis, David L. Gambetta, Viet Nguyen | 2012-08-28 |
| 7815170 | Valve assembly having a reinforced valve seat | Donald L. Devine, Jr., David L. Gambetta | 2010-10-19 |