Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5167192 | Damper controller for a chemical recovery furnace | Kenneth A. Pingel | 1992-12-01 |
| 5001992 | Apparatus for regulating air flow through an air port of a chemical recovery furnace | Robert B. Hill | 1991-03-26 |