Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186433 | Adjustable eccentric valve | — | 1993-02-16 |
| 5143468 | Articulable joint and support frame for exhaust hose | — | 1992-09-01 |
| 5096230 | Quick release adapter for connecting an exhaust removal hose to a vehicle tail pipe using magnets | Harvey S. Lewis, Glen Kampa | 1992-03-17 |
| 4995645 | Elbow connection for pneumatic conveying system | — | 1991-02-26 |
| 4578840 | Mobile vacuum machine | — | 1986-04-01 |
| 4562885 | Plate heat exchanger and pressure blast cleaner | — | 1986-01-07 |
| 4556173 | Bin fluidizer | David A. Sorenson | 1985-12-03 |