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David Bonen
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Skokie, IL, US
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last 30 patents
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Patent Grant
Structural sheathing panels
Patent number
6,620,487
Issue date
Sep 16, 2003
United States Gypsum Company
Timothy D. Tonyan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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Patent Grant
Gypsum-cement system for construction materials
Patent number
6,241,815
Issue date
Jun 5, 2001
United States Gypsum Company
David Bonen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES