Inventor · disambiguated record
Frederick S. Schell
Also filed as: SCHELL FREDERICK S
3 granted patents·48 citations·filing 1974–1988
71Inventor score
Files withHART CHEMICAL LTD3
Top patents by PatentIndex Score
3 records- 0173US4024072AWater-dispersible defoamer compositionHART CHEMICAL LTD·Filed 1976·Granted May 17, 1977·32 cites·19 claims
- 0244US4088601AWater-emulsifiable defoamer compositionHART CHEMICAL LTD·Filed 1974·Granted May 9, 1978·12 cites·57 claims
- 0332US4925988ALow foaming surfactantHART CHEMICAL LTD·Filed 1988·Granted May 15, 1990·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →