Frank Hancock
13Patents
7h-index
9Co-inventors
55Inventor score
Filing activity: Dec 19, 1991 → Aug 24, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5488818A | Lawn mower having improved trim feature | Human Necessities | 49 | Expired |
| US5199251A | Mulching blade including multiple cutting edges | Human Necessities | 37 | Expired |
| US5511367A | Lawn mower having additinal improved trim featuure | Human Necessities | 32 | Expired |
| US5983614A | Lockable front wheel swivel for lawn mowers | Performing Operations; Transporting | 30 | Expired |
| US6405513B1 | Method and apparatus for restricting grass cutting of a lawn mower in reverse | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6591594B2 | Method and apparatus for restricting grass cutting of a lawn mower in reverse | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5353581A | Mulching blade including multiple cutting edges | Human Necessities | 9 | Expired |
| US6513310B1 | Lawn mower having disabling feature | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6848245B2 | Lawn mower with improved blade and blade housing | Human Necessities | 6 | Expired |
| US6684535B2 | Snowthrower discharge assembly clearance method and apparatus for facilitating same | Fixed Constructions | 4 | Expired |
| US6779323B2 | Elongate barrier system for use with lawn mower decks | Human Necessities | 2 | Expired |
| US6708472B2 | Lawn mower having disabling feature | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US7213388B2 | Elongate barrier system for use with lawn mower decks | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.