DH

Donald E. Hipchen

CE Celotex: 4 patents #16 of 77Top 25%
Overall (All Time): #1,309,289 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4386983 Method of making a foam structural laminate Michael J. Skowronski, Joseph R. Hagan 1983-06-07
4346133 Structural laminate and method for making same Michael J. Skowronski, Joseph R. Hagan 1982-08-24
RE30984 Structural laminate and method for making same Michael J. Skowronski, Joseph R. Hagan 1982-06-29
4284683 Structural laminate Michael J. Skowronski, Joseph R. Hagan 1981-08-18