Guenter Frey
8Patents
6h-index
15Co-inventors
56Inventor score
Filing activity: Mar 3, 1978 → Apr 18, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4425238A | Removal of anionic compounds from water | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4383834A | Coloring of paper | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5064552A | Nitrite- and phosphate-free antifreeze based on glycol | Chemistry; Metallurgy | 17 | Expired |
| US5334323A | Deicing or antiicing fluids for aircraft | Chemistry; Metallurgy | 15 | Expired |
| US4827008A | Preparation of alkoxysilanes containing a low level of chlorine compounds | Chemistry; Metallurgy | 8 | Expired |
| US4810404A | Nitrite- and phosphate-free glycol-based coolant mixtures | Chemistry; Metallurgy | 6 | Expired |
| US4151127A | Process for suppressing the foaming of detergents | Chemistry; Metallurgy | 4 | Expired |
| US4444959A | Water-soluble benzylated polyamidoamines | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.