HD

Heyman C. Duecker

W& W. R. Grace &: 1 patents #186 of 433Top 45%
WC W.R. Grace & Co.-Conn.: 1 patents #543 of 1,045Top 55%
📍 Chelmsford, MA: #414 of 858 inventorsTop 50%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,279,898 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5531825 Hydraulic cement set accelerators based on nitroalcohols Ellis Gartner, Joseph A. Cogliano, Ahmad Arfaei, Leslie A. Jardine, Paul Scheiner 1996-07-02
4375987 Additive combination for hydraulic cement compositions Bruce A. Lange 1983-03-08