Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7464913 | Orifice valve for bulk solids | Lee Young, Eric Jon Severson | 2008-12-16 |
| 7163191 | High pressure gate valve | Lee Young | 2007-01-16 |
| 7021604 | Iris valve for control of bulk solids | Harmon Lee Davis, Monty Richard Leach | 2006-04-04 |