Inventor · disambiguated record
Frank J. Steffes
Also filed as: STEFFES FRANK J
3 granted patents·99 citations·filing 1973–1980
75Inventor score
Top patents by PatentIndex Score
3 records- 0187US4452694AApparatus for selective sorting of material chipsBLACK CLAWSON INC·Filed 1980·Granted Jun 5, 1984·44 cites·11 claims
- 0286US4054625AProcess for making fibersCROWN ZELLERBACH CORP·Filed 1973·Granted Oct 18, 1977·36 cites·24 claims
- 0375US4050980ASelective delamination of wood chipsCROWN ZELLERBACH CORP·Filed 1976·Granted Sep 27, 1977·19 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →