Derek Smith
14Patents
6h-index
11Co-inventors
63Inventor score
Filing activity: Nov 26, 1976 → Apr 18, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD384358S | Tractor cab | General | 33 | Expired |
| USD785048S1 | Lawn mower | General | 12 | Active |
| USD784420S1 | Lawn mower | General | 11 | Active |
| US6732480B1 | Adjustable roof platform | Fixed Constructions | 8 | Expired |
| US6357315B1 | Differential lock and four wheel drive control arrangement | Emerging Cross-Sectional Technologies | 8 | Expired |
| US10433478B2 | Lawn mower and hand pushed power tool | Human Necessities | 8 | Active |
| US4445394A | Control lever arrangements | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5613728A | Vehicle cab with roof hatch | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4766926A | Hydraulic unloading valves | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7104423B2 | Container with fitment | Performing Operations; Transporting | 2 | Expired |
| US4069889A | Steering systems | Performing Operations; Transporting | 2 | Expired |
| US6390226B1 | Differential lock engaging arrangement | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4478104A | Lever mechanism | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10093013B2 | Power tool and combined housing thereof | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.