8 Utility and 156 Design Patents
#1 in Parma, MI
#15 in Michigan
#157 in US
#215 in the World
rank by design patentsForward Citations = 1,709
Company Filing History:



Ply Gem Pacific Windows Corporation

Cdrtainteed Corporation
4. 1 out of 1
Certainteed Company
5. 1 out of 1
Certainteed Corportation
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