Ralph C. Gray
22Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Nov 7, 1977 → Sep 15, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6312812A | Coated metal substrates and methods for preparing and inhibiting corrosion of the same | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6410926B1 | Coating with optical taggent | Chemistry; Metallurgy | 51 | Expired |
| US4517322A | Acrylated alkyd and polyester resins | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5294265A | Non-chrome passivation for metal substrates | Chemistry; Metallurgy | 28 | Expired |
| US5306526A | Method of treating nonferrous metal surfaces by means of an acid activating agent and an organophosphate or organophosphonate and substrates treated by such method | Chemistry; Metallurgy | 26 | Expired |
| US4346143A | Method of applying zinc-rich primer and product | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6217674A | Compositions and process for treating metal substrates | Chemistry; Metallurgy | 17 | Expired |
| US5653790A | Zinc phosphate tungsten-containing coating compositions using accelerators | Chemistry; Metallurgy | 15 | Expired |
| US6750274B2 | Weldable coating of phosphated epoxy polymer, curing agent and electroconductive pigment | Chemistry; Metallurgy | 14 | Expired |
| US6440580B1 | Weldable, coated metal substrates and methods for preparing and inhibiting corrosion of the same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6777034B2 | Weldable, coated metal substrates and methods for preparing and inhibiting corrosion of the same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6187849A | Temporary protective coating | Chemistry; Metallurgy | 11 | Expired |
| US6984674B2 | Curable, weldable coating compositions | Chemistry; Metallurgy | 11 | Expired |
| US4309328A | Stable aqueous dispersions of particles of vinylidene fluoride polymer | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5149382A | Method of pretreating metal by means of composition containing S-triazine compound | Chemistry; Metallurgy | 10 | Expired |
| US7345101B2 | Aqueous composition of reaction product of epoxy and phosphorus materials with curing agent | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7147897B2 | Weldable compositions comprising a conductive pigment and silicon and methods for using the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7141619B2 | Corrosion and alkali-resistant compositions and methods for using the same | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5360492A | Pretreating composition containing substituted triazine compound | Chemistry; Metallurgy | 2 | Expired |
| US5693739A | Phenolic polymers from amino phenols and anhydride or epoxy polymers | Chemistry; Metallurgy | 2 | Expired |
| US7476444B2 | Layer of reaction product of epoxy and phosphorus materials and curing agent on substrate | Emerging Cross-Sectional Technologies | 1 | Active |
| US7282266B2 | Corrosion and alkali-resistant compositions and methods for using the same | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.