PC

Philip M. Carkner

SI Siplast: 3 patents #1 of 12Top 9%
WC W.R. Grace & Co.-Conn.: 1 patents #543 of 1,045Top 55%
Overall (All Time): #1,266,229 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6769215 System and method for enhancing the bond of roofing membrane to lightweight insulating concrete 2004-08-03
6290769 Lightweight insulating concrete and method for using same 2001-09-18
5787668 Ventilated insulated roofing system with improved resistance to wind uplift Todd Corley, Hubert T. Dudley, Timothy L. Kersey 1998-08-04
5424099 High strength pourable gypsum floor underlayments and methods of providing same Gary D. Stewart 1995-06-13