Robert N. Behrens
19Patents
11h-index
19Co-inventors
69Inventor score
Filing activity: Sep 20, 1974 → Sep 17, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4969533A | Work vehicle | Performing Operations; Transporting | 110 | Expired |
| US4852672A | Drill apparatus having a primary drill and a pilot drill | Fixed Constructions | 98 | Expired |
| US4759417A | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4051915A | Neutral start and park brake safety interlock circuitry for a tractor | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4883137A | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4589499A | Horizontal drilling apparatus | Fixed Constructions | 28 | Expired |
| US4715747A | Air motivated conduit prover apparatus | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5540292A | Pneumatically actuated horizontal drilling apparatus having a plurality of drills | Fixed Constructions | 24 | Expired |
| US5125460A | Pneumatically actuated horizontal drilling apparatus having a plurality of drills | Fixed Constructions | 19 | Expired |
| US4248331A | Clutch-brake controls for a lawn and garden tractor | Performing Operations; Transporting | 15 | Expired |
| US5337849A | Axle mounting mechanism | Performing Operations; Transporting | 14 | Expired |
| US4920732A | Hydraulic lift with weight transfer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US3948024A | Implement position control system | Human Necessities | 8 | Expired |
| US5315893A | Vehicle brake mechanism | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4671395A | Power take-off brake and clutch actuation assembly | Human Necessities | 7 | Expired |
| US4838299A | Pulsation dampener apparatus | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4982762A | Hydraulic lift with weight transfer | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4583390A | Apparatus for squeezing off and rerounding pipe | Performing Operations; Transporting | 3 | Expired |
| US5682753A | Nitrogen gas water chiller apparatus | Human Necessities | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.