Richard Perkins
15Patents
7h-index
14Co-inventors
63Inventor score
Filing activity: Oct 25, 1993 → Sep 17, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6198206A | Inertial/audio unit and construction | Electricity | 117 | Expired |
| US5913666A | Security lock for firearms | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5478743A | Microbially mediated degradation of nitrogen-containing phenol compounds by single bacterial isolates | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6359371B1 | Inertial/audio unit and construction | Electricity | 11 | Expired |
| US6493978B1 | Method of securing firearms | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6376967B2 | Inertial/audio unit and construction | Electricity | 10 | Expired |
| US6086630A | Automated PCB checklist | Physics | 8 | Expired |
| US6563254B2 | Inertial/audio unit and construction | Electricity | 7 | Expired |
| US6767099B2 | System and method for displaying physical objects in space | Physics | 6 | Expired |
| US8182533B2 | Annular repair device and method | Human Necessities | 4 | Active |
| US6122851A | Security lock for firearms | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6791098B2 | Multi-input, multi-output motion control for lithography system | Electricity | 4 | Expired |
| US7998173B2 | Adjustable spinous process spacer device and method of treating spinal stenosis | Human Necessities | 3 | Active |
| US5509656A | Electronic maze puzzle | Human Necessities | 2 | Expired |
| US9907580B2 | Adjustable spinous process spacer device and method of treating spinal disorders | Human Necessities | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.