Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4300291 | Methods and apparatus for heating particulate material | Charles R. Wilt, Jr. | 1981-11-17 |
| 4236318 | Methods and apparatus for heating particulate material | Charles R. Wilt, Jr. | 1980-12-02 |