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Paul Libbers
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Claymont, DE, US
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Patents Grants
last 30 patents
Information
Patent Grant
Mix head assembly for forming chemical mechanical polishing pads
Patent number
8,118,897
Issue date
Feb 21, 2012
Rohm and Haas Electronic Materials CMP Holdings, Inc.
John Esbenshade
B24 - GRINDING POLISHING
Information
Patent Grant
Method for manufacturing chemical mechanical polishing pad polishin...
Patent number
7,947,098
Issue date
May 24, 2011
Rohm and Haas Electronic Materials CMP Holdings, Inc.
John Esbenshade
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
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Patent Application
Mix head assembly for forming chemical mechanical polishing pads
Publication number
20110185967
Publication date
Aug 4, 2011
Rohm and Haas Electronic Materials CMP Holding, Inc.
John Esbenshade
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Application
Method for manufacturing chemical mechanical polishing pad polishin...
Publication number
20100269416
Publication date
Oct 28, 2010
Rohm and Haas Electroinic Materials CMP Holidays, Inc.
John Esbenshade
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL