John Mayhew
14Patents
13h-index
2Co-inventors
68Inventor score
Filing activity: Nov 10, 1980 → Jan 3, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD505450S1 | Credit or stored value card with wood layer | General | 90 | Expired |
| US4840068A | Pipe pressure sensor | Physics | 59 | Expired |
| US4377274A | Knife gate valve | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US7409788B2 | Personalized financial transaction cards and methods | Physics | 34 | Expired |
| US6354327B1 | Automatic position-control valve assembly | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5654885A | Valve position controller | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4798365A | Throttling gasket insert for use with knife gate valve | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4646407A | Method of making corrosion resistant valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| USD523076S1 | Financial transaction card | General | 21 | Expired |
| US7891122B2 | Personalized financial transaction cards and methods | Physics | 21 | Active |
| US5097857A | Electro-hydraulic valve-actuator system | Emerging Cross-Sectional Technologies | 21 | Expired |
| US8134558B1 | Systems and methods for editing of a computer-generated animation across a plurality of keyframe pairs | Physics | 14 | Active |
| US4587989A | Turn disc slide valve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US8397407B2 | Gift card assembly with sticker and associated methods | Physics | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.