David Merchant
22Patents
8h-index
7Co-inventors
68Inventor score
Filing activity: Jul 7, 1986 → Dec 23, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5406778A | Electric drive riding greens mower | Human Necessities | 122 | Expired |
| US5540037A | Control system for electric drive riding mower | Human Necessities | 63 | Expired |
| US5553445A | Riding mower with swingout center mower head | Human Necessities | 28 | Expired |
| US4782333A | Water-flow detector with rapid switching | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4692838A | Fire panel with door providing ease of service | Electricity | 18 | Expired |
| USD615006S1 | Double clevis connector for tow bar | General | 15 | Expired |
| US7959180B1 | Tow bar | Performing Operations; Transporting | 14 | Active |
| US8056919B1 | Tow bar and leg latching mechanism therefor | Performing Operations; Transporting | 13 | Active |
| US7942435B1 | Tow bar | Emerging Cross-Sectional Technologies | 8 | Active |
| US7959179B1 | Tow bar having lunette ring head and fishtail-reducing cammed equiangularly-oriented tow bar legs | Performing Operations; Transporting | 7 | Active |
| US8128116B1 | Tow bar and releasable lock for tow bar leg | Emerging Cross-Sectional Technologies | 6 | Active |
| US7988179B1 | Tow bar having orthogonally-articulated towed-vehicle connectors | Performing Operations; Transporting | 6 | Active |
| USD612772S1 | Pin and pin retainer for tow bar | General | 6 | Expired |
| US8540257B1 | Dynamic steering stabilizer device for vehicles | Mechanical Engineering; Lighting; Heating | 5 | Active |
| USD612773S1 | Releasable biased latch device for a tow bar | General | 3 | Expired |
| US7976050B1 | Side-mountable chain-tensioning device for a load-compensating trailer hitch | Performing Operations; Transporting | 3 | Active |
| US8366137B1 | Tow bar having leg lock with opposing latch elements | Performing Operations; Transporting | 3 | Active |
| US4695686A | Valve supervisory switch | Electricity | 3 | Expired |
| US9033357B1 | Tow bar with a sliding mechanism for converting legs thereof from an aligned tubular structure to an articulated structure | Performing Operations; Transporting | 2 | Active |
| US8662523B1 | Light-weight tow bar and leg lock therefor | Performing Operations; Transporting | 2 | Active |
| USD650400S1 | Tapered latch receiver for a tow bar | General | 1 | Expired |
| USRE44948E1 | Side-mountable tensioning device for a load-compensating trailer hitch | General | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.