David J. Wortman
30Patents
17h-index
46Co-inventors
81Inventor score
Filing activity: Nov 21, 1977 → Jul 6, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5683825A | Thermal barrier coating resistant to erosion and impact by particulate matter | Chemistry; Metallurgy | 115 | Expired |
| US6503574B1 | Method for producing an enhanced thermal barrier coating system | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5427866A | Platinum, rhodium, or palladium protective coatings in thermal barrier coating systems | Emerging Cross-Sectional Technologies | 67 | Expired |
| US5419971A | Enhanced thermal barrier coating system | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5792521A | Method for forming a multilayer thermal barrier coating | Chemistry; Metallurgy | 48 | Expired |
| US6042880A | Renewing a thermal barrier coating system | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5418003A | Vapor deposition of ceramic materials | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5981088A | Thermal barrier coating system | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5683761A | Alpha alumina protective coatings for bond-coated substrates and their preparation | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6054184A | Method for forming a multilayer thermal barrier coating | Chemistry; Metallurgy | 23 | Expired |
| US5240518A | Single crystal, environmentally-resistant gas turbine shroud | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6589351B1 | Electron beam physical vapor deposition apparatus and crucible therefor | Chemistry; Metallurgy | 22 | Expired |
| US6458473B1 | Diffusion aluminide bond coat for a thermal barrier coating system and method therefor | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5942334A | Multilayer thermal barrier coating | Chemistry; Metallurgy | 22 | Expired |
| US5712050A | Superalloy component with dispersion-containing protective coating | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6620465B2 | Physical properties of thermal barrier coatings using electron beam-physical vapor deposition | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6946034B1 | Electron beam physical vapor deposition apparatus | Electricity | 17 | Expired |
| US6447854B1 | Method of forming a thermal barrier coating system | Chemistry; Metallurgy | 17 | Expired |
| US6808799B2 | Thermal barrier coating on a surface | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6203847A | Coating of a discrete selective surface of an article | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7247393B2 | Gamma prime phase-containing nickel aluminide coating | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6863937B2 | Method of operating an electron beam physical vapor deposition apparatus | Electricity | 8 | Expired |
| US4148936A | Method for diffusion coating an Fe-Ni base alloy with chromium | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7087266B2 | Thermal barrier coating and process therefor | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7250225B2 | Gamma prime phase-containing nickel aluminide coating | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.