Joseph E. Dezelan
24Patents
10h-index
11Co-inventors
68Inventor score
Filing activity: Jan 14, 1974 → Dec 14, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3970327A | Suspension and load leveling for an urban hauler | Performing Operations; Transporting | 26 | Expired |
| US4341149A | Selectively actuatable fluid control system for a work element | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US3997017A | Auxiliary hydrostatic front wheel drive system | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4217968A | Closed center emergency steering with accumulator source | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4354351A | Load sensing steering | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4069886A | Auxiliary hydrostatic front wheel drive system | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4084644A | Motor grader or the like with hydraulic control system for circle gear | Fixed Constructions | 12 | Expired |
| US4017221A | Combined unloading and relief valve for pump unloading circuit | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4077484A | Hydro-electrical priority valve and speed control circuit | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5226348A | Electro-hydraulic quick drop circuit | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US3935792A | Pilot pump bleed control for earthmoving scrapers | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4034815A | Blade lift float circuit for motor graders | Fixed Constructions | 8 | Expired |
| US4189920A | Load signal control of hydraulic motor displacement | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4107924A | Pump upgrading system | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4515181A | Flow control valve assembly wth quick response | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4099588A | Responsive pilot-operated control valve for front wheel drive | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4019585A | Combined automatic and manual hydraulic control for motor grader blade | Fixed Constructions | 6 | Expired |
| US4132290A | Locking mechanism for movable vehicle members | Fixed Constructions | 6 | Expired |
| US4195479A | Torque control of hydraulic motors | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4174614A | Torque limiting control for front wheel drive | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US3992035A | Combination hydraulic and mechanical suspension system | Performing Operations; Transporting | 4 | Expired |
| US4191017A | Motor displacement control system | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4341280A | Variable displacement front wheel drive system | Performing Operations; Transporting | 2 | Expired |
| USH1953H | Apparatus and method for preparing a hydraulic work machine for towing | General | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.