John Hoffman
7Patents
5h-index
11Co-inventors
60Inventor score
Filing activity: Jun 19, 1980 → Oct 17, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4509884A | Injection nozzle for adhesive materials | Fixed Constructions | 14 | Expired |
| US4344543A | Reinforced plastic tank | Performing Operations; Transporting | 13 | Expired |
| USD397611S | Closure for a box for straws | General | 8 | Expired |
| US4832227A | Split lid for sewage basins | Emerging Cross-Sectional Technologies | 6 | Expired |
| USD393592S | Closure for a box for straws | General | 6 | Expired |
| US5601417A | Hydraulic pump with ball bearing pistons | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US9670041B2 | Remote activation of scissor lift cylinder prop | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.