Inventor · disambiguated record
William I. Frey
Also filed as: FREY WILLIAM I
3 granted patents·41 citations·filing 1974–1979
71Inventor score
Files withPPG INDUSTRIES INC3
Top patents by PatentIndex Score
3 records- 0152US4277299ARelease molds for laminating bilayer safety glassPPG INDUSTRIES INC·Filed 1979·Granted Jul 7, 1981·22 cites·1 claims
- 0248US3971864APolyurethane laminatesPPG INDUSTRIES INC·Filed 1974·Granted Jul 27, 1976·10 cites·7 claims
- 0344US4274856AMethod for developing a release surface on a glass moldPPG INDUSTRIES INC·Filed 1979·Granted Jun 23, 1981·9 cites·6 claims
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