Inventor · disambiguated record
Ralph C. Gray
Also filed as: GRAY RALPH C
22 granted patents·1 pending application·806 citations·filing 1977–2006
97Inventor score
Top patents by PatentIndex Score
23 records- 0196US6312812B1Coated metal substrates and methods for preparing and inhibiting corrosion of the samePPG IND OHIO INC·Filed 1999·Granted Nov 6, 2001·129 cites·43 claims
- 0294US4517322AAcrylated alkyd and polyester resinsPPG INDUSTRIES INC·Filed 1983·Granted May 14, 1985·82 cites·12 claims
- 0393US6410926B1Coating with optical taggentPPG IND OHIO INC·Filed 1999·Granted Jun 25, 2002·71 cites·25 claims
- 0492US7345101B2Aqueous composition of reaction product of epoxy and phosphorus materials with curing agentPPG IND OHIO INC·Filed 2006·Granted Mar 18, 2008·17 cites·14 claims
- 0591US5294265ANon-chrome passivation for metal substratesPPG INDUSTRIES INC·Filed 1993·Granted Mar 15, 1994·88 cites·20 claims
- 0689US6750274B2Weldable coating of phosphated epoxy polymer, curing agent and electroconductive pigmentPPG IND OHIO INC·Filed 2001·Granted Jun 15, 2004·31 cites·12 claims
- 0786US5306526AMethod of treating nonferrous metal surfaces by means of an acid activating agent and an organophosphate or organophosphonate and substrates treated by such methodPPG INDUSTRIES INC·Filed 1992·Granted Apr 26, 1994·70 cites·19 claims
- 0885US6777034B2Weldable, coated metal substrates and methods for preparing and inhibiting corrosion of the samePPG IND OHIO INC·Filed 2002·Granted Aug 17, 2004·26 cites·4 claims
- 0984US4346143AMethod of applying zinc-rich primer and productPPG INDUSTRIES INC·Filed 1977·Granted Aug 24, 1982·37 cites·20 claims
- 1083US6984674B2Curable, weldable coating compositionsPPG IND OHIO INC·Filed 2004·Granted Jan 10, 2006·18 cites·5 claims
- 1183US6440580B1Weldable, coated metal substrates and methods for preparing and inhibiting corrosion of the samePPG IND OHIO INC·Filed 1998·Granted Aug 27, 2002·52 cites·28 claims
- 1279US5653790AZinc phosphate tungsten-containing coating compositions using acceleratorsPPG INDUSTRIES INC·Filed 1996·Granted Aug 5, 1997·51 cites·33 claims
- 1378US6217674B1Compositions and process for treating metal substratesPPG IND OHIO INC·Filed 1999·Granted Apr 17, 2001·44 cites·29 claims
- 1477US7476444B2Layer of reaction product of epoxy and phosphorus materials and curing agent on substratePPG IND OHIO INC·Filed 2006·Granted Jan 13, 2009·2 cites·10 claims
- 1576US7147897B2Weldable compositions comprising a conductive pigment and silicon and methods for using the samePPG IND OHIO INC·Filed 2002·Granted Dec 12, 2006·15 cites·25 claims
- 1675US6187849B1Temporary protective coatingPPG IND OHIO INC·Filed 1999·Granted Feb 13, 2001·27 cites·19 claims
- 1766US7141619B2Corrosion and alkali-resistant compositions and methods for using the samePPG IND OHIO INC·Filed 2004·Granted Nov 28, 2006·8 cites·25 claims
- 1865US4309328AStable aqueous dispersions of particles of vinylidene fluoride polymerPPG INDUSTRIES INC·Filed 1979·Granted Jan 5, 1982·17 cites·28 claims
- 1963US5149382AMethod of pretreating metal by means of composition containing S-triazine compoundPPG INDUSTRIES INC·Filed 1991·Granted Sep 22, 1992·14 cites·5 claims
- 2047US7282266B2Corrosion and alkali-resistant compositions and methods for using the samePPG IND OHIO INC·Filed 2004·Granted Oct 16, 2007·1 cites·47 claims
- 2140US5360492APretreating composition containing substituted triazine compoundPPG INDUSTRIES INC·Filed 1992·Granted Nov 1, 1994·4 cites·12 claims
- 2233US2004086718A1Corrosion and alkali-resistant compositions and methods for using the samePAWLIK MICHAEL J·Filed 2002·Application pending·0 cites
- 2332US5693739APhenolic polymers from amino phenols and anhydride or epoxy polymersPPG INDUSTRIES INC·Filed 1995·Granted Dec 2, 1997·2 cites·14 claims
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