DP

David Purcell

WC W.R. Grace & Co.-Conn.: 1 patents #543 of 1,045Top 55%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #3,879,603 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5027572 Moisture and vapor barrier in exterior insulation finish systems Lawrence Shapiro 1991-07-02