John A. Hoffman
13Patents
9h-index
15Co-inventors
69Inventor score
Filing activity: Apr 10, 1978 → Aug 3, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6082816A | Chair storage unit | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4359948A | Knock-down pallet and stringer attaching mechanism | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5875499A | Recreational vehicle toilet with flush nozzle deflector shield | Fixed Constructions | 16 | Expired |
| US4171588A | Plastic carrying case for a fishing rod and reel | Human Necessities | 14 | Expired |
| US4217668A | Portable toilet | Fixed Constructions | 14 | Expired |
| US6127912A | Bobbin for an encapsulated coil of a solenoid assembly | Electricity | 13 | Expired |
| USD257385S | Toilet | General | 11 | Expired |
| US4641383A | Portable toilet holding tank spout | Emerging Cross-Sectional Technologies | 11 | Expired |
| USD262051S | Portable toilet | General | 9 | Expired |
| US4180876A | Portable toilets | Fixed Constructions | 9 | Expired |
| US4769860A | Portable toilet holding tank spout | Fixed Constructions | 8 | Expired |
| US5318275A | Portable waste holding tank with improved inlet valve assembly | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5676106A | Injector system for an oil renewal system | Mechanical Engineering; Lighting; Heating | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.