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Donald E. Hipchen — 4 Patents

CECelotex: 4 patents #16 of 77Top 25%
Sanford, FL: #128 of 670 inventorsTop 20%
Florida: #13,316 of 67,251 inventorsTop 20%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Donald E. Hipchen has been granted 4 US patents while listed as an inventor at Celotex. The first was granted in 1981 and the most recent in June 1983. Donald E. Hipchen ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Donald E. Hipchen in Sanford, FL, US.

Issued Patents All Time

Showing 1–4 of 4 patents

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

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