Dennis L. Jeffries
18Patents
10h-index
32Co-inventors
72Inventor score
Filing activity: Feb 8, 1978 → Jan 25, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5224577A | Calibration method for transmission control clutches | Emerging Cross-Sectional Technologies | 45 | Expired |
| US9562592B2 | Method for controlling gear shift | Emerging Cross-Sectional Technologies | 45 | Active |
| US9206885B2 | Multi-mode infinitely variable transmission | Emerging Cross-Sectional Technologies | 33 | Active |
| US5026334A | Single piston activation of a planetary transmission | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US5449329A | Method for controlling transmission control clutches | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US10119598B2 | Multi-mode infinitely variable transmission | Emerging Cross-Sectional Technologies | 24 | Active |
| US9981665B2 | Energy storage and delivery for power trains of work vehicles | Emerging Cross-Sectional Technologies | 23 | Active |
| US6470991B1 | Tractor with front suspension | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US10670124B2 | Multi-mode infinitely variable transmission | Mechanical Engineering; Lighting; Heating | 12 | Active |
| US4177723A | Compactor device for large round bales | Human Necessities | 12 | Expired |
| US6722994B2 | Suspended drive axle and agricultural tractor with same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US10655710B2 | Multi-mode infinitely variable transmission that provides seamless shifting | Emerging Cross-Sectional Technologies | 8 | Active |
| US5011465A | Wide speed-range multi-speed power shift transmission | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6915873B2 | Suspended drive axle and agricultural tractor with same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6779623B2 | Suspended drive axle and agricultural tractor with same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8347618B2 | Dual pump hydraulic system | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US10408310B2 | Gearbox control method | Emerging Cross-Sectional Technologies | 1 | Active |
| US10550922B2 | Multi-mode infinitely variable transmission | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.