Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6585003 | Rising stem soft seat plug valve | Carl A. Steiner, Ricky L. Jackson, Michael O'Connell | 2003-07-01 |
| 6196268 | Rising stem soft seat plug valve | Carl A. Steiner, Ricky L. Jackson, Michael O'Connell | 2001-03-06 |