Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745999 | Gate valve for high-density slurries, and a valve body assembly, and a solids-containing wall lining means therefor | Richard L. Heinecke | 2004-06-08 |
| 6681790 | Ported slide gate valve with gate motion to break scale build up | Douglas Stuart Gray | 2004-01-27 |