Inventor · disambiguated record

Hellmuth Frey

Also filed as: FREY HELLMUTH · SCHMIDHAMMER LUDWIG

2 granted patents·7 citations·filing 1975–1978

52Inventor score

Technology areasC07C

Files withWACKER CHEMIE GMBH2

Top patents by PatentIndex Score

2 records

0149US4188347AProcess for treating unreacted 1,2-dichloroethane from 1,2-dichloroethane crackingWACKER CHEMIE GMBH·Filed 1978·Granted Feb 12, 1980·3 cites·5 claims
0248US3998706AProcess for the separation of chlorohydrocarbons from lower boiling impuritiesWACKER CHEMIE GMBH·Filed 1975·Granted Dec 21, 1976·4 cites·8 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →