CRH Oldcastle, Inc.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

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

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D442703 Paving blockJan 19, 00May 22, 01[2501]
D435121 Roof tileApr 08, 99Dec 12, 00[2501]
D426317 Paving stoneJul 07, 99Jun 06, 00[2501]
D423114 Paving stoneMay 27, 97Apr 18, 00[2501]
D397802 Paving blockNov 26, 96Sep 01, 98[2501]
5743059 Roof tileNov 04, 94Apr 28, 98[E04D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7060212 Roof tiles, roof tile layout, and method of manufactureExpiredApr 09, 03Jun 13, 06[B29C]
6604336 Roof tiles, roof tile layout, and method of manufactureExpiredMar 07, 02Aug 12, 03[B28B, E04G]
6381914 Roof tiles, roof tile layout, and method of manufactureExpiredNov 25, 98May 07, 02[E04D]

Top Inventors for This Owner

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