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Ronald F. Lovenguth
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Doylestown, PA, US
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last 30 patents
Information
Patent Grant
Tetrahalophthalate esters as flame retardants for polybutylene tere...
Patent number
4,954,542
Issue date
Sep 4, 1990
Pennwalt Corporation
Joseph M. Bohen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tetrahalophthalate esters as flame retardants for ABS (acrylonitril...
Patent number
4,938,894
Issue date
Jul 3, 1990
Pennwalt Corporation
Joseph M. Bohen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tetrahalophthalate esters as flame retardants for polystyrene resins
Patent number
4,923,916
Issue date
May 8, 1990
Pennwalt Corporation
Joseph M. Bohen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tetrahalophthalate esters as flame retardants for polycarbonate resins
Patent number
4,912,158
Issue date
Mar 27, 1990
Pennwalt Corporation
Joseph M. Bohen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tetrahalophthalate esters as flame retardants for polyphenylene eth...
Patent number
4,764,550
Issue date
Aug 16, 1988
Pennwalt Corporation
Ronald F. Lovenguth
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Tetrahalophthalate esters as flame retardants for polystyrene resins
Patent number
4,762,861
Issue date
Aug 9, 1988
Pennwalt Corporation
Joseph M. Bohen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Flame retardant polyphenylene ether-styrene thermoplastic resin com...
Patent number
4,446,265
Issue date
May 1, 1984
FMC Corporation
Diza P. Braksmayer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...