Walter Frey
5Patents
4h-index
14Co-inventors
54Inventor score
Filing activity: Jul 17, 1972 → Mar 16, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3932500A | Recovering anhydrous acrylic acid | Chemistry; Metallurgy | 43 | Expired |
| US4052450A | Catalytic oxidation of .alpha.-olefins | Performing Operations; Transporting | 21 | Expired |
| US4110370A | Method of separating high-boiling or non-volatile materials | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6488778B1 | Apparatus and method for controlling wafer environment between thermal clean and thermal processing | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4315416A | Bath container for a refrigeration equipment | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.