Wolfgang Schaefer
39Patents
11h-index
80Co-inventors
78Inventor score
Filing activity: Aug 14, 1974 → Jul 27, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7339882B2 | Method for frame and frequency synchronization of an OFDM signal and method for transmitting an OFDM signal | Electricity | 40 | Expired |
| US5672818A | Throttle valve adjusting unit | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US4789561A | Oxygen electrode with layer comprising electrode and electrolyte materials | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5162145A | Glazing with filtering band and process for production | Emerging Cross-Sectional Technologies | 26 | Expired |
| US3955257A | Revolving tool holder for a rotary machine such as a lathe or drill | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5131857A | Power strip for supplying electrical power in common to a plurality of electrically actuatable units of internal combustion engines | Electricity | 17 | Expired |
| US6988320B2 | Level | Physics | 17 | Expired |
| US7150106B2 | Method of using a level | Physics | 16 | Expired |
| US5043585A | Method and apparatus for measurement of the fluorescence relaxation period of a fluorescent substance | Physics | 13 | Expired |
| US6254975A | Ceramic composite | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4647613A | Thermoplastic compositions based on polyphenylene ethers, styrene polymers, and polyoctenylenes, and methods of manufacturing same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6822953B1 | Method for transmitting radio signals and receiver for receiving radio signals | Electricity | 10 | Expired |
| US6396260B1 | Measuring device for contactless detection of a rotational angle | Physics | 10 | Expired |
| US6144286A | PTCR-resistor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4439090A | Workpiece handling apparatus | Performing Operations; Transporting | 9 | Expired |
| US4100671A | Arrangement for automatically changing the clamping jaws of the chuck of a machine tool | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5587251A | Ceramic gas supply components for fuel cells comprising zirconium oxide solid electrolyte | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4136214A | Method of forming film | Performing Operations; Transporting | 6 | Expired |
| US5387476A | Power connection element for solid-electrolyte fuel cells | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4729159A | Tool Exchange device | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5417831A | Solid electrolyte having a multi-layer electrode applied thereto | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6986860B2 | Method for producing a throttle valve unit with integrated throttle valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5178937A | Belt for papermaking machines | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4097530A | Process for the production of squaric acid | Chemistry; Metallurgy | 3 | Expired |
| US8580878B2 | Radiation-curable printing ink or printing varnish | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.