Inventor · disambiguated record
Richard R. Lewchuk
Also filed as: LEWCHUK RICHARD R
3 granted patents·163 citations·filing 1974–1977
74Inventor score
Files withPPG INDUSTRIES INC3
Top patents by PatentIndex Score
3 records- 0195US3971178AAdd-on multiple glazing with hygroscopic materialPPG INDUSTRIES INC·Filed 1974·Granted Jul 27, 1976·130 cites·32 claims
- 0263US4134240AMounting system for an add on glass panelPPG INDUSTRIES INC·Filed 1977·Granted Jan 16, 1979·29 cites·7 claims
- 0331US4118911AGlazing toolPPG INDUSTRIES INC·Filed 1977·Granted Oct 10, 1978·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →