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Joseph A. Hoffman
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Bridgewater, NJ, US
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last 30 patents
Information
Patent Grant
Novel light stabilizers for polymers
Patent number
4,412,020
Issue date
Oct 25, 1983
American Cyanamid Company
Frank F. Loffelman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Hindered amine light stabilizers for polymers
Patent number
4,370,430
Issue date
Jan 25, 1983
American Cyanamid Company
Joseph A. Hoffman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymeric pentaerythrityl phosphonates and their use as flame retar...
Patent number
RE30946
Issue date
May 25, 1982
American Cyanamid Company
Joseph A. Hoffman
524 - Synthetic resins or natural rubbers
Information
Patent Grant
Cyclic diphosphonates
Patent number
4,268,459
Issue date
May 19, 1981
American Cyanamid Company
Joseph A. Hoffman
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Nickel salt-ester stabilizing compositions
Patent number
4,248,594
Issue date
Feb 3, 1981
American Cyanamid Company
Robert J. Tucker
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymeric pentaerythrityl phosphonates and their use as flame retar...
Patent number
4,217,267
Issue date
Aug 12, 1980
American Cyanamid Company
Joseph A. Hoffman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Pentaerythrityl diphosphonate-ammonium polyphosphate combinations a...
Patent number
4,174,343
Issue date
Nov 13, 1979
American Cyanamid Company
William B. Hardy
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Nickel stabilizers and dye enhancers for polyolefins
Patent number
4,144,029
Issue date
Mar 13, 1979
American Cyanamid Company
Joseph A. Hoffman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyolefins and polyesters flame-proofed with carboxyalkyl and carb...
Patent number
4,017,455
Issue date
Apr 12, 1977
American Cyanamid Company
Joseph Adrian Hoffman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Carbamoylalkyl substituted poly(phosphine oxide) flame-retardants
Patent number
4,009,207
Issue date
Feb 22, 1977
American Cyanamid Company
Joseph Adrian Hoffman
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Carboxyalkyl and carbamoylalkyl substituted poly(phosphine oxide) f...
Patent number
3,976,685
Issue date
Aug 24, 1976
American Cyanamid Company
Joseph Adrian Hoffman
C07 - ORGANIC CHEMISTRY