Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5185899 | Apparatus for sludge removal | — | 1993-02-16 |
| 5041165 | Dirty surface cleaning method | — | 1991-08-20 |
| 4975195 | Apparatus and method for processing trap wastes and the like | — | 1990-12-04 |
| 4776112 | Sludge pond vehicle | — | 1988-10-11 |
| 4771503 | Tank cleaning system | — | 1988-09-20 |
| 4719015 | Apparatus and method for processing sewage scum | — | 1988-01-12 |
| 4707878 | Vacuum loading cleaning system | — | 1987-11-24 |
| 4687584 | Sludge remover and processor | — | 1987-08-18 |
| 4672710 | Single pressure vessel cleaning system | — | 1987-06-16 |
| 4647383 | Apparatus and method for processing sewage scum | — | 1987-03-03 |
| 4619015 | Vacuum loading cleaning system | — | 1986-10-28 |
| 4616377 | Recycled liquid cleaning system | — | 1986-10-14 |
| 4584969 | Dirty water heat exchanger | — | 1986-04-29 |
| 4466154 | Tank cleaning system | — | 1984-08-21 |