Inventor
ZIULKOWSKI CHARLES DOYLE
US6 patents
⚠️ This page may combine multiple inventors who share the name “ZIULKOWSKI CHARLES DOYLE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EPOCH COMPOSITE PRODUCTS INC
4 patentsUS7475516B2Jan 13, 2009
Roofing shingle with a laying line
EPOCH COMPOSITE PRODUCTS INC17 citations90
US6935089B2Aug 30, 2005
Methods of manufacturing roofing products
EPOCH COMPOSITE PRODUCTS INC7 citations71
US7700028B2Apr 20, 2010
Method for manufacturing roofing products
EPOCH COMPOSITE PRODUCTS INC3 citations60
US7516593B2Apr 14, 2009
Roofing shingle with a laying line
EPOCH COMPOSITE PRODUCTS INC3 citations60