Inventor · disambiguated record
John D. Kellar
Also filed as: KELLAR JOHN D
12 granted patents·255 citations·filing 1979–1989
92Inventor score
Files withPPG INDUSTRIES INC12
Top patents by PatentIndex Score
12 records- 0191US4511386ADeformable vacuum holder used to shape glass sheetsPPG INDUSTRIES INC·Filed 1983·Granted Apr 16, 1985·42 cites·16 claims
- 0288US4297118AControlling overheating of vacuum mold used to shape glass sheetsPPG INDUSTRIES INC·Filed 1980·Granted Oct 27, 1981·37 cites·10 claims
- 0385US4349375ADeformable vacuum mold for shaping glass sheetsPPG INDUSTRIES INC·Filed 1981·Granted Sep 14, 1982·32 cites·14 claims
- 0482US4511387AVacuum holder with anti-bulging means used to shape glass sheetsPPG INDUSTRIES INC·Filed 1983·Granted Apr 16, 1985·28 cites·18 claims
- 0578US4277276AMethod and apparatus for shaping glass sheets using deformable vacuum moldPPG INDUSTRIES INC·Filed 1980·Granted Jul 7, 1981·27 cites·9 claims
- 0676US5049178APartial press apparatus and method for glass sheet bendingPPG INDUSTRIES INC·Filed 1989·Granted Sep 17, 1991·23 cites·17 claims
- 0774US4988398ALaminate prepress roll assemblyPPG INDUSTRIES INC·Filed 1989·Granted Jan 29, 1991·20 cites·14 claims
- 0866US4483703ADeformable vacuum holder with helical coil springs for shaping glassPPG INDUSTRIES INC·Filed 1983·Granted Nov 20, 1984·16 cites·7 claims
- 0957US4278193AGlass breaking and separating apparatus and methodPPG INDUSTRIES INC·Filed 1979·Granted Jul 14, 1981·13 cites·17 claims
- 1047US4325723ATransferring rigid sheets from one conveyor to anotherPPG INDUSTRIES INC·Filed 1980·Granted Apr 20, 1982·9 cites·10 claims
- 1142US4311503AMethod of controlling temperature of glass exiting furnacesPPG INDUSTRIES INC·Filed 1980·Granted Jan 19, 1982·6 cites·11 claims
- 1231US4483701ACooling vacuum holder by suction fluid flowPPG INDUSTRIES INC·Filed 1983·Granted Nov 20, 1984·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →