Helmut Wolf
40Patents
11h-index
72Co-inventors
78Inventor score
Filing activity: Sep 9, 1974 → Jun 15, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4363396A | Device for building-up and discharging an annular dump of bulk material | Performing Operations; Transporting | 90 | Expired |
| US5684494A | Reflector antenna, especially for a communications satellite | Electricity | 57 | Expired |
| US5457535A | Method and apparatus for determining the concentration of optically-active materials in a fluid | Physics | 44 | Expired |
| US6889723B2 | Preparation for sealing punctured tires and apparatus for the sealing and pumping up of tires | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6454892B1 | Preparation for sealing punctured tires and apparatus for the sealing and pumping up of tires | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4624803A | Fatty alcohol oxyalkylates, possessing blocked terminal groups, for industrial cleaning processes, in particular bottle-washing and metal-cleaning | Chemistry; Metallurgy | 30 | Expired |
| US4704453A | Preparation of alkylglucosides | Chemistry; Metallurgy | 25 | Expired |
| US6379015B2 | Indicating instrument with an illuminated pointer disposed behind the dial | Physics | 21 | Expired |
| US4629060A | Apparatus for handling bulk material | Performing Operations; Transporting | 21 | Expired |
| US3943758A | Device for determining surface strains during the measurement of inherent stresses in structural components of machines or apparatus | Physics | 13 | Expired |
| US4605811A | Process for restoring or maintaining the activity of heterogeneous catalysts for reactions at normal and low pressures | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4721826A | Process for restoring or maintaining the activity of heterogeneous catalysts for reactions at normal and low pressures | Emerging Cross-Sectional Technologies | 11 | Expired |
| US8674874B2 | Method and device for calibrating an array antenna | Physics | 11 | Active |
| US4588531A | Preparation of alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids | Chemistry; Metallurgy | 11 | Expired |
| US5539134A | Process for the preparation of N-alkanoyl-polyhydroxyalkylamines | Chemistry; Metallurgy | 9 | Expired |
| US6154183A | Waveguide antenna | Electricity | 8 | Expired |
| US5055295A | Lysis of fibrin blood clots with urokinase and pro-urokinase | Human Necessities | 8 | Expired |
| US5357960A | Method and apparatus for the quantitative determination of optically active substances | Physics | 7 | Expired |
| US5554742A | Preparation of alkyl glycosides | Chemistry; Metallurgy | 6 | Expired |
| US4695412A | Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts | Chemistry; Metallurgy | 5 | Expired |
| US5316338A | Arrangement for endwise transport of an implement | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8878629B2 | Diplexer for a reflector antenna | Electricity | 5 | Active |
| US5287454A | Method for acquiring network knowledge about a digital transmission network | Electricity | 4 | Expired |
| US6642850B1 | Indicating device | Performing Operations; Transporting | 3 | Expired |
| US6475063B2 | Grinding device | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.