John Herbert Frey
16Patents
9h-index
26Co-inventors
72Inventor score
Filing activity: Apr 8, 1982 → Mar 25, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7252024B2 | Apparatus and method for machining with cryogenically cooled oxide-containing ceramic cutting tools | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6080800A | Aqueous wax dispersions as cell openers in making polyurethane flexible foams | Chemistry; Metallurgy | 21 | Expired |
| US4583086A | Circuit for monitoring the operating condition of an electric load | Physics | 19 | Expired |
| US6513336B2 | Apparatus and method for transferring a cryogenic fluid | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5432206A | Polyether silicone surfactants for the manufacture of urethane foams | Chemistry; Metallurgy | 11 | Expired |
| US7513121B2 | Apparatus and method for improving work surface during forming and shaping of materials | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6245824A | Silicone surfactants for making polyurethane flexible molded foams | Chemistry; Metallurgy | 11 | Expired |
| US6239186A | Silicone surfactants for the production of open cell polyurethane flexible foams | Chemistry; Metallurgy | 11 | Expired |
| US5492939A | Polyether silicone surfactants for the manufacture of urethane foams | Chemistry; Metallurgy | 11 | Expired |
| US7637187B2 | Apparatus and method of cryogenic cooling for high-energy cutting operations | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6675622B2 | Process and roll stand for cold rolling of a metal strip | Performing Operations; Transporting | 9 | Expired |
| US5852065A | Low emission, cell opening surfactants for polyurethane flexible and rigid foams | Chemistry; Metallurgy | 8 | Expired |
| US5908871A | Polyester polyurethane flexible slabstock foam made using reduced emission surfactant | Chemistry; Metallurgy | 6 | Expired |
| US5243078A | Production of noncyclic polyalkylene polyamines | Chemistry; Metallurgy | 4 | Expired |
| US6235804A | Silicone surfactants for making polyurethane flexible molded foams | Chemistry; Metallurgy | 1 | Expired |
| US8220370B2 | Apparatus and method for machining of hard metals with reduced detrimental white layer effect | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.