Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8500092 | Secondary seat for gas regulator | — | 2013-08-06 |
| 6968857 | Pressure reducing fluid regulators | James C. Hawkins, David Edwards Woollums, Neal A. Ackerman, Chun Lin, Harold J. McKinney | 2005-11-29 |