Paul David Parker
20Patents
13h-index
23Co-inventors
81Inventor score
Filing activity: Jun 22, 1981 → May 27, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD451891S | Implement depth control and display | General | 60 | Expired |
| US5797460A | Straight bar tillage implement | Human Necessities | 58 | Expired |
| US5957218A | Electrohydraulic control of implement lift cylinders | Human Necessities | 56 | Expired |
| US6220366A | Wheel control structure for a folding implement | Human Necessities | 44 | Expired |
| US6651416B2 | Large rectangular baler having hydraulically powered functions, and control system therefor | Human Necessities | 36 | Expired |
| US5499686A | Deep tillage winged sweep | Human Necessities | 31 | Expired |
| USD440985S | Lift wheel arm for an implement | General | 29 | Expired |
| US5082217A | Hydraulic hose support for an implement | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6401832B1 | Agricultural implement lift wheel structure | Human Necessities | 21 | Expired |
| US5964300A | Wear shin for a tillage implement | Human Necessities | 18 | Expired |
| US6213219A | Compact hinge assembly for a folding implement | Human Necessities | 18 | Expired |
| US7104191B1 | Method of maximizing baler throughput | Human Necessities | 15 | Expired |
| US6129157A | Bypass system for electronically controlled implement lift | Human Necessities | 15 | Expired |
| US6016877A | Implement frame construction including tube within a tube | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5427183A | Deep tillage standard and bracket therefor | Human Necessities | 9 | Expired |
| US6382655B1 | Implement hitch | Performing Operations; Transporting | 4 | Expired |
| US6402180B1 | Implement hitch | Performing Operations; Transporting | 2 | Expired |
| US4410047A | Tractor-drawn plow with hitch and furrow wheel hydraulic motors connected in series | Human Necessities | 2 | Expired |
| US6725766B2 | Independently powered knotter and needle drive arrangement for a large rectangular baler | Human Necessities | 1 | Expired |
| US4474247A | Automatic bi-positionable mechanism for plows | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.