Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10710222 | Hydraulic cylinder assembly system | — | 2020-07-14 |
| 9771704 | Insulated excavation tube | — | 2017-09-26 |
| 9440280 | Portable hydraulic house member crimping device | — | 2016-09-13 |
| 8661643 | Portable hand operated hose fitting swaging device | Richard D. Dresang | 2014-03-04 |
| 8522414 | Portable hand operated hose fitting swaging device | Richard D. Dresang | 2013-09-03 |
| 7921560 | Method of forming a large diameter extruded pipe | Richard D. Dresang | 2011-04-12 |
| 6895670 | Method of attaching a self-aligning flange to a vacuum pipe and forming a large diameter extruded pipe | Richard D. Dresang | 2005-05-24 |
| 6634102 | Method of removing a sensing rod from a hydraulic water pump | Daniel M. Olson | 2003-10-21 |