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Howard S. Friedman
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North Haven, CT, US
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last 30 patents
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Patent Grant
Benzoquinoneimines as vinyl aromatic polymerization inhibitors
Patent number
6,222,080
Issue date
Apr 24, 2001
Uniroyal Chemical Company, Inc.
Howard Stephen Friedman
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzoquinoneimines as vinyl aromatic polymerization inhibitors
Patent number
6,039,895
Issue date
Mar 21, 2000
Howard Stephen Friedman
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Composition for inhibiting the polymerization of aromatic vinyl mon...
Patent number
5,659,095
Issue date
Aug 19, 1997
Uniroyal Chemical Company, Inc.
Howard Stephen Friedman
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymerization inhibitor for vinyl aromatics
Patent number
5,540,861
Issue date
Jul 30, 1996
Uniroyal Chemical Company, Inc.
Anthony V. Grossi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymerization inhibitor for vinyl aromatics
Patent number
5,312,952
Issue date
May 17, 1994
Uniroyal Chemical Company, Inc.
Anthony V. Grossi
C07 - ORGANIC CHEMISTRY