John F. Gardner
20Patents
11h-index
23Co-inventors
75Inventor score
Filing activity: May 2, 1978 → Aug 22, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5940306A | Drawer operating system | Emerging Cross-Sectional Technologies | 189 | Expired |
| US5445294A | Method for automatic dispensing of articles stored in a cabinet | Emerging Cross-Sectional Technologies | 156 | Expired |
| US5392951A | Drawer operating system | Emerging Cross-Sectional Technologies | 138 | Expired |
| US7847421B2 | System for generating electrical energy from ambient motion | Electricity | 123 | Active |
| US5902351A | Apparatus and method for tracking a vehicle | Physics | 82 | Expired |
| US6511138B1 | Drawer closing and latching system | Fixed Constructions | 42 | Expired |
| US8030786B2 | System for generating electrical energy from ambient energy | Electricity | 41 | Active |
| US5332642A | Vacuum assisted dispersant reduction system | Physics | 30 | Expired |
| US4986713A | Apparatus for applying hard and soft covers to bound or unbound documents | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4142868A | Wear compensating seal means for rotary piston coal feeder | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4715400A | Valve and method of making same | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4678159A | Manually actuated fluid flow control valve and method of making same | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4518149A | Valve assembly and method of making same | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4809948A | Butterfly valve assembly and method of making same | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4503675A | Fail-safe actuator with fusible link | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4688594A | Butterfly valve assembly and method of making same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4559967A | Valve and method of making same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4542763A | Butterfly valve assembly and method of making same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5226771A | Apparatus and method for applying hard and soft covers to bound or unbound documents | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4690164A | Valve assembly and method of making same | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.