Inventor · disambiguated record
Richard M. Van Effen
Also filed as: VAN EFFEN RICHARD M
2 granted patents·1 pending application·15 citations·filing 1987–2001
58Inventor score
Files withMERRELL DOW PHARMA2
Top patents by PatentIndex Score
3 records- 0146US4772363AProcess for preparing 2,6-di-tertiarybutyl-4-mercaptophenol by electrocatalysisMERRELL DOW PHARMA·Filed 1987·Granted Sep 20, 1988·8 cites·4 claims
- 0244US4861443AProcess for preparing 4,4'-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol) by electrocatalysisMERRELL DOW PHARMA·Filed 1988·Granted Aug 29, 1989·7 cites·6 claims
- 0333US2001037101A1Tagged superabsorbent polymers in a multicomponent structureFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →