Inventor · disambiguated record

Earl J. Estopinal

Also filed as: ESTOPINAL EARL J · ESTOPINAL JR EARL J

2 granted patents·85 citations·filing 1981–1982

60Inventor score

Technology areasB01J C01P

Files withCOLUMBIAN CHEM2

Top patents by PatentIndex Score

2 records

0188US4391789ACarbon black processCOLUMBIAN CHEM·Filed 1982·Granted Jul 5, 1983·84 cites·3 claims
0225US4342736AReduction of the degradation of refractories in a carbon black reactorCOLUMBIAN CHEM·Filed 1981·Granted Aug 3, 1982·1 cites·16 claims

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