Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7413656 | Aerobic sewage system | Thomas W. Olson, Carl Elmer Miller | 2008-08-19 |
| 5451316 | Aerobic sewage treatment system | — | 1995-09-19 |
| 4763529 | In-situ beta alumina stress simulator | John F. Leonard | 1988-08-16 |
| 4620925 | Aerobic sewage system and aerating unit therefore | — | 1986-11-04 |