Duvall; David S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Duvall; David S..The latest application filed is for "overlay coatings with high yttrium contents".
- Duvall; David S. - Cobalt CT
- Duvall; David S. - Middletown CT
| Patent | Date |
|---|---|
| Overlay coatings with high yttrium contents Grant 4,615,865 - Duvall , et al. October 7, 1 | 1986-10-07 |
| Overlays coating for superalloys Grant 4,585,481 - Gupta , et al. April 29, 1 | 1986-04-29 |
| Overlay coatings for superalloys Grant RE32,121 - Gupta , et al. April 22, 1 | 1986-04-22 |
| Quench-cracked ceramic thermal barrier coatings Grant 4,457,948 - Ruckle , et al. July 3, 1 | 1984-07-03 |
| Overlay coatings for superalloys Grant 4,419,416 - Gupta , et al. December 6, 1 | 1983-12-06 |
| Age hardenable nickel superalloy welding wires containing manganese Grant 4,213,026 - Duvall , et al. July 15, 1 | 1980-07-15 |
| Method of making a composite interlayer for diffusion bonding Grant 4,122,992 - Duvall , et al. October 31, 1 | 1978-10-31 |
| Metallic filler material Grant 4,073,639 - Duvall , et al. February 14, 1 | 1978-02-14 |
| Method of repairing surface defects using metallic filler material Grant 4,008,844 - Duvall , et al. February 22, 1 | 1977-02-22 |
| Interlayer Foil For Diffusion Bonding Grant 3,753,794 - Paulonis , et al. August 21, 1 | 1973-08-21 |
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