Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337120 | Baffle system for staged turbulent bed | Paul W. Tamm, P. Henrik Wallman | 1982-06-29 |
| 4332669 | Oil shale retorting process with raw shale preheat prior to pyrolysis | Paul W. Tamm, P. Henrik Wallman | 1982-06-01 |