Chang, David R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang, David R..The latest application filed is for "method of removing cores from ceramic matrix composite articles".
- Chang, David R. - Fairfield OH
- Chang; David R. - Cincinnati OH
| Patent | Date |
|---|---|
| Method of removing cores from ceramic matrix composite articles App 20020005605 - Dunyak, Thomas J. ; et al. | 2002-01-17 |
| Method of removing cores from ceramic matrix composite articles Grant 6,274,078 - Dunyak , et al. August 14, 2 | 2001-08-14 |
| Metallic coated article of improved environmental resistance Grant 4,123,594 - Chang October 31, 1 | 1978-10-31 |
| Metallic coated article Grant 4,123,595 - Chang October 31, 1 | 1978-10-31 |
| Metal of improved environmental resistance Grant 4,018,569 - Chang April 19, 1 | 1977-04-19 |
| Metallic coated article with improved resistance to high temperature environmental conditions Grant 3,996,021 - Chang , et al. December 7, 1 | 1976-12-07 |
| Metal of improved environmental resistance Grant 3,976,436 - Chang August 24, 1 | 1976-08-24 |
| Metallic coating powder containing Al and Hf Grant 3,951,642 - Chang , et al. April 20, 1 | 1976-04-20 |
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