OTTO GRAF GMBH KUNSTSTOFFERZEUGNISSE

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
E03F SEWERS; CESSPOOLS111
 
 
 
E04D ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS 126

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9896832 Percolation block element, percolation block, and transport unitOct 21, 14Feb 20, 18[E03F]
8741132 Device for catching rainwaterJun 01, 11Jun 03, 14[E04D]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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