Inventor · disambiguated record
Herbert Alf
Also filed as: ALF HERBERT
3 granted patents·62 citations·filing 1977–1984
73Inventor score
Files withMANN & HUMMEL FILTER3
Top patents by PatentIndex Score
3 records- 0182US4565176ADevice for controlling the intake air temperature of a mixture-compressing internal combustion engineMANN & HUMMEL FILTER·Filed 1984·Granted Jan 21, 1986·26 cites·20 claims
- 0266US4178760AFilter dust ejector and check valve arrangement in exhaust system of internal combustion engineMANN & HUMMEL FILTER·Filed 1977·Granted Dec 18, 1979·24 cites·7 claims
- 0350US4231343ADevice for controlling the intake air temperature of a carburetor-equipped internal combustion engineMANN & HUMMEL FILTER·Filed 1979·Granted Nov 4, 1980·12 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →