John R. Botterill
9Patents
7h-index
6Co-inventors
48Inventor score
Filing activity: Aug 10, 1989 → Apr 21, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5423235A | Device for switching on a drive train | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4950214A | Differential drive | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US5080640A | Differential unit | Mechanical Engineering; Lighting; Heating | 57 | Expired |
| US5106349A | Differential unit | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5078249A | Gear box with gears shiftable under load | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5352164A | Switchable differential drive | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5372106A | Drive assembly for auxiliary units | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5493927A | Gearbox switchable under load | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5230255A | Gearbox switchable under load including a coupling spreading assembly | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.