Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009242 | Apparatus for monitoring sewer cleaning tool extension | — | 1991-04-23 |
| 4933018 | High pressure hose pulsation cleaning method | — | 1990-06-12 |
| 4878517 | High pressure hose pulsation attachment | — | 1989-11-07 |
| 4839936 | Automated sewer cleaning rodding machine | — | 1989-06-20 |
| 4838302 | Sewer cleaning equipment | — | 1989-06-13 |
| 4734951 | Automated sewer cleaning rodding machine | — | 1988-04-05 |
| 4540017 | Hose feeder guide apparatus | — | 1985-09-10 |
| 4464806 | Sewer rod turning machine safety device | — | 1984-08-14 |
| 4418572 | Sewer pipe tester | — | 1983-12-06 |
| D267823 | Sewer line proofer tool | — | 1983-02-01 |