Roy Parker
13Patents
8h-index
6Co-inventors
65Inventor score
Filing activity: Jan 31, 1977 → Jan 27, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4199635A | Fabric faced laminate panel and method of manufacture | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5309584A | Invalid hoists | Human Necessities | 36 | Expired |
| US4359132A | High performance speaker diaphragm | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4112037A | Process of making air filter fabric | Performing Operations; Transporting | 22 | Expired |
| USD355293S | Invalid hoist | General | 16 | Expired |
| US4241118A | Tennis balls and method of manufacture | Emerging Cross-Sectional Technologies | 13 | Expired |
| USD273700S | Bathtub for invalids or the like | General | 12 | Expired |
| USD355290S | Invalid sling | General | 9 | Expired |
| US4222806A | Method of covering tennis balls | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD352994S | Bathing platform | General | 7 | Expired |
| US4444305A | Conveyor belting for handling bakery goods | Performing Operations; Transporting | 4 | Expired |
| US5537697A | Bath for use by elderly or disabled persons | Human Necessities | 4 | Expired |
| US11503818B2 | Farrier hoof stand apparatus | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.