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John de Ris
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Sharon, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Device and method for measuring absorbed heat flux in a fire test a...
Patent number
6,971,792
Issue date
Dec 6, 2005
FM Global Technologies LLC
John L. de Ris
G01 - MEASURING TESTING
Information
Patent Grant
Heat flux measurement pipe and method for determining sprinkler wat...
Patent number
6,862,941
Issue date
Mar 8, 2005
FM Global Technologies, LLC
Ronald L. Alpert
G01 - MEASURING TESTING
Information
Patent Grant
Heat flux measurement pipe and method for determining sprinkler wat...
Patent number
6,499,357
Issue date
Dec 31, 2002
Factory Mutual Research Corporation
Ronald L. Alpert
G01 - MEASURING TESTING
Information
Patent Grant
Bench-scale material flammability test apparatus and process for me...
Patent number
4,637,735
Issue date
Jan 20, 1987
Factory Mutual Research Corporation
John de Ris
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Device and method for measuring absorbed heat flux in a fire test a...
Publication number
20050078732
Publication date
Apr 14, 2005
FM GLOBAL TECHNOLOGIES, LLC
John L. de Ris
G01 - MEASURING TESTING
Information
Patent Application
Heat flux measurement pipe and method for determining sprinkler wat...
Publication number
20030070493
Publication date
Apr 17, 2003
Ronald L. Alpert
G01 - MEASURING TESTING
Information
Patent Application
Heat flux measurement pipe and method for determining sprinkler wat...
Publication number
20020152818
Publication date
Oct 24, 2002
Ronald L. Alpert
G01 - MEASURING TESTING