Helmut Hoffmann
7Patents
4h-index
21Co-inventors
57Inventor score
Filing activity: Jun 14, 1974 → Jan 4, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4106075A | Ceramic capacitor | Electricity | 17 | Expired |
| US5986075A | Process for the production of diazonium compounds with a low content of sodium ions | Chemistry; Metallurgy | 10 | Expired |
| US8267435B2 | Charge-air hose assembly | Emerging Cross-Sectional Technologies | 6 | Active |
| US4088917A | Method and apparatus for the permanent polarization of piezoelectric bodies | Electricity | 5 | Expired |
| US8770355B2 | Brake disk | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US3956368A | Process for the production of guanidine salts of aliphatic mercaptosulphonic acids | Chemistry; Metallurgy | 0 | Expired |
| US4472757A | Electric capacitor with liquid cooling | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.