Inventor · disambiguated record
David W. Sopher
Also filed as: SOPHER DAVID · SOPHER DAVID W
6 granted patents·32 citations·filing 1983–1995
78Inventor score
Top patents by PatentIndex Score
6 records- 0158US4855452AN-substituted azetidine carboxylate derivativesSHELL OIL CO·Filed 1988·Granted Aug 8, 1989·4 cites·6 claims
- 0257US4476025ASeparation of certain carboxylic acids utilizing cation exchange membranesUS ENERGY·Filed 1983·Granted Oct 9, 1984·17 cites·19 claims
- 0350US5593557AElectrode consisting of an iron-containing core and a lead-containing coatingBASF AG·Filed 1995·Granted Jan 14, 1997·10 cites·8 claims
- 0437US4760160APreparation of 3-cyano-4-fluorophenolSHELL OIL CO·Filed 1986·Granted Jul 26, 1988·1 cites·4 claims
- 0532US4778577AProcess for preparing azetidine derivatives; and intermediates thereinSHELL OIL CO·Filed 1986·Granted Oct 18, 1988·0 cites·8 claims
- 0627US4663487APreparation of 4,4-disubstituted cyclohexadienonesSHELL OIL CO·Filed 1986·Granted May 5, 1987·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →