Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405456 | Clarifier apparatus | John W. Clingman | 1983-09-20 |
| 4238338 | Apparatus for the treatment of sewage | — | 1980-12-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4405456 | Clarifier apparatus | John W. Clingman | 1983-09-20 |
| 4238338 | Apparatus for the treatment of sewage | — | 1980-12-09 |