Karl Hofmann
81Patents
14h-index
136Co-inventors
87Inventor score
Filing activity: Jan 15, 1974 → Oct 23, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4653455A | Electrically controlled fuel injection pump for internal combustion engines | Emerging Cross-Sectional Technologies | 62 | Expired |
| US5002816A | Sealing strip for a ridging | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4168804A | Fuel injection nozzle for internal combustion engines | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4589596A | Nozzle for internal combustion engines | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US4382554A | Fuel injection nozzle construction | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4801095A | Fuel injection nozzle for internal combustion engines | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4151958A | Fuel injection nozzle | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4285471A | Fuel injection nozzle | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5072706A | Fuel injection pump for internal combustion engines, in particular diesel engines | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4133321A | Clamping device for fuel injection nozzles | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4417693A | Fuel injection valve for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4403740A | Fuel injection nozzle | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4258883A | Fuel injection nozzle | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4768719A | Fuel injection nozzle for internal combustion engines | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US3942366A | Fuel injection arrangement | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4296887A | Heat protected fuel injection plug for internal combustion engines | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4573291A | Ridge or hip covering for tiled roofs | Fixed Constructions | 14 | Expired |
| US5899385A | Fuel injection valve for internal combustion engines | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US9896392B2 | Method for oligomerization of ethylene | Chemistry; Metallurgy | 13 | Active |
| US5053266A | Ventilation tile with pliable edge areas | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6551525B2 | Dust-proof element and a method of its use in an electrical hand-held tool and with a working tool | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4394970A | Fuel injection nozzle for combustion engines | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5727738A | Fuel injection valve for internal combustion engines | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5244152A | Fuel-injection valve for internal-combustion engines | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6283389A | Fuel injection valve for internal combustion engines | Mechanical Engineering; Lighting; Heating | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.