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John D. Spivack
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Spring Valley, NY, US
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last 30 patents
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Patent Grant
Substituted N-thiomethyl phenothiazines as lubricant stabilizers
Patent number
5,319,081
Issue date
Jun 7, 1994
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted N-thiomethylphenothiazines as lubricant stabilizers
Patent number
5,211,862
Issue date
May 18, 1993
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
(Hydroxyphenyl) phosphine stabilized compositions
Patent number
4,835,202
Issue date
May 30, 1989
Ciba-Geigy Corporation
Stephen D. Pastor
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
6-(1-hydro-2,2,6,6-tetraalkyl-piperidine-4-oxy)dibenzodioxaphosphep...
Patent number
4,808,645
Issue date
Feb 28, 1989
Ciba-Geigy Corporation
Ramanathan Ravichandran
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted (4-hydroxyphenylthioalkyl) derivatives
Patent number
4,808,644
Issue date
Feb 28, 1989
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 3,5-dialkyl-4-hydroxy benzoic acid
Patent number
4,730,083
Issue date
Mar 8, 1988
Ciba-Geigy Corporation
Stephen D. Pastor
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Long chain (4-hydroxyphenyl) propanoate stabilizers
Patent number
4,713,475
Issue date
Dec 15, 1987
Ciba-Geigy Corporation
John D. Spivack
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Substituted-(hydroxyphenyl)-pyrrolidine-2,5-dione stabilizers
Patent number
4,709,050
Issue date
Nov 24, 1987
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pentaerythritol diphosphite stabilizers and process
Patent number
4,692,539
Issue date
Sep 8, 1987
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted N-(4-hydroxyphenylthioalkyl) cyclic imides
Patent number
4,692,532
Issue date
Sep 8, 1987
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1H-polyalkyl-phosphorinanes
Patent number
4,642,382
Issue date
Feb 10, 1987
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hindered silicon ester stabilizers
Patent number
4,636,573
Issue date
Jan 13, 1987
Stephen D. Pastor
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzoate-stabilized rigid polyvinyl chloride compositions
Patent number
4,619,957
Issue date
Oct 28, 1986
Ciba-Geigy Corporation
William J. Reid
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Bis(substituted thioalkyl)hydroxylamines and stabilized polyolefin...
Patent number
4,612,393
Issue date
Sep 16, 1986
Ciba-Geigy Corporation
Ramanathan Ravichandran
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tri- and tetra-(substituted hydroxyphenylthio) alkane and cycloalka...
Patent number
4,612,341
Issue date
Sep 16, 1986
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted dibenzo dioxaphosphepins and dioxaphosphocins as stabil...
Patent number
4,605,692
Issue date
Aug 12, 1986
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Dioxasilepin and dioxasilocin stabilizers
Patent number
4,582,870
Issue date
Apr 15, 1986
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tri- and Tetra-(substituted hydroxyphenylthio) alkane and cycloalka...
Patent number
4,560,799
Issue date
Dec 24, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
4-Hydroxyphenylthio substituted stabilizers for polymers
Patent number
4,559,379
Issue date
Dec 17, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzoate-stabilized rigid polyvinyl chloride compositions
Patent number
4,555,541
Issue date
Nov 26, 1985
Ciba-Geigy Corporation
William J. Reid
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Substituted 4-hydroxyphenylthio benzoate stabilizers
Patent number
4,552,926
Issue date
Nov 12, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted (4-hydroxyphenylthio) succinic anhydride or succinate s...
Patent number
4,547,539
Issue date
Oct 15, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Alkylated S-(hydroxyphenylthio) alkanoates
Patent number
4,540,732
Issue date
Sep 10, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1H-Polyalkyl-phosphorinanes
Patent number
4,539,421
Issue date
Sep 3, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Primary or secondary amino substituted dibenzo dioxaphosphepins and...
Patent number
4,524,166
Issue date
Jun 18, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymeric hindered phosphonate stabilizers
Patent number
4,524,167
Issue date
Jun 18, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thiocarbamate stabilizers
Patent number
4,521,320
Issue date
Jun 4, 1985
Ciba-Geigy Corporation
John D. Spivack
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
S-(4-Hydroxyphenyl)thiocarboxylic ester antioxidants
Patent number
4,508,865
Issue date
Apr 2, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Dioxasilepin and dioxasilocin stabilizers
Patent number
4,503,243
Issue date
Mar 5, 1985
Eisai Co., Ltd.
John D. Spivack
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Substituted (4-hydroxyphenylthio) succinic anhydride or succinate s...
Patent number
4,497,959
Issue date
Feb 5, 1985
Ciba-Geigy Corporation
John D. Spivack
C07 - ORGANIC CHEMISTRY