Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682753 | Nitrogen gas water chiller apparatus | — | 1997-11-04 |
| 5540292 | Pneumatically actuated horizontal drilling apparatus having a plurality of drills | — | 1996-07-30 |
| 5337849 | Axle mounting mechanism | Jimmy N. Eavenson, Sr., Henry Friesen, Nicholas Hamm | 1994-08-16 |
| 5315893 | Vehicle brake mechanism | Jimmy N. Eavenson, Sr. | 1994-05-31 |
| 5125460 | Pneumatically actuated horizontal drilling apparatus having a plurality of drills | — | 1992-06-30 |
| 4982762 | Hydraulic lift with weight transfer | Michael Chun-chieh Lee, Dale R. Dobberpuhl, Lloyd A. Wykhuis, Dix S. Montogomery | 1991-01-08 |
| 4969533 | Work vehicle | David R. Holm, Stephen G. Ritter, Kenneth Edward Hunt, Ronald J. Baker, Mark F. Hopp +2 more | 1990-11-13 |
| 4920732 | Hydraulic lift with weight transfer | Michael Chun-chieh Lee, Dale R. Dobberpuhl, Lloyd A. Wykhuis, Dix S. Montgomery | 1990-05-01 |
| 4883137 | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle | Lee J. Wanie, Stanley J. DeBraal, Michael Bedis | 1989-11-28 |
| 4852672 | Drill apparatus having a primary drill and a pilot drill | — | 1989-08-01 |
| 4838299 | Pulsation dampener apparatus | — | 1989-06-13 |
| 4759417 | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle | Lee J. Wanie, Stanley J. DeBraal | 1988-07-26 |
| 4715747 | Air motivated conduit prover apparatus | — | 1987-12-29 |
| 4671395 | Power take-off brake and clutch actuation assembly | Dale R. Dobberpuhl | 1987-06-09 |
| 4589499 | Horizontal drilling apparatus | — | 1986-05-20 |
| 4583390 | Apparatus for squeezing off and rerounding pipe | — | 1986-04-22 |
| 4248331 | Clutch-brake controls for a lawn and garden tractor | — | 1981-02-03 |