Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407646 | Dual impeller method and apparatus for effecting chemical conversion | James W. Smith | 1995-04-18 |
| 5403567 | Dual impeller method and apparatus for effecting chemical conversion | James W. Smith | 1995-04-04 |