Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962279 | Kaolin calciner waste heat and feed recovery process | Charles D. Anderson, Carl S. Cummings | 1990-10-09 |
| 4717559 | Kaolin calciner waste heat and feed recovery system and method | Carl S. Cummings | 1988-01-05 |