Inventor · disambiguated record
Harold Greenfield
Also filed as: GREENFIELD HAROLD
8 granted patents·84 citations·filing 1975–1989
87Inventor score
Top patents by PatentIndex Score
8 records- 0187US4605743AProcess for the production of 2,2,6,6-tetraalkyl-4-piperidylaminesUNIROYAL CHEM CO INC·Filed 1985·Granted Aug 12, 1986·27 cites·14 claims
- 0277US4607104AProcess for the production of 2,2,6,6-tetraalkyl-4-piperidylaminesUNIROYAL CHEM CO INC·Filed 1985·Granted Aug 19, 1986·14 cites·16 claims
- 0375US5081303ACo-production of an aromatic monoamine and an aromatic diamine directly from benzene or a benzene derivative through controlled nitration and reductionFIRST CHEMICAL CORP·Filed 1989·Granted Jan 14, 1992·14 cites·23 claims
- 0474US4069240ANuclear hydrogenation of n-aryl carbamatesUNIROYAL INC·Filed 1975·Granted Jan 17, 1978·8 cites·18 claims
- 0570US4431841AProcess for making diarylaminesUNIROYAL INC·Filed 1982·Granted Feb 14, 1984·9 cites·5 claims
- 0654US4045484AProcess for preparing N'-methyl acethydrazideUNIROYAL INC·Filed 1976·Granted Aug 30, 1977·4 cites·6 claims
- 0748US3965174AProcess for preparing N,N-disubstituted acid hydrazidesUNIROYAL INC·Filed 1975·Granted Jun 22, 1976·4 cites·15 claims
- 0840US4018747AProduction of fiber-forming polyamides by transamidation of N-alicyclic diamides with dicarboxylic acidsUNIROYAL INC·Filed 1976·Granted Apr 19, 1977·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →