Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061661 | Method for producing tungsten carbide and cemented tungsten carbide article therefrom having a uniform microstructure | David R. Moyle, Robert F. Northrop | 1991-10-29 |
| 4664899 | Method of producing monotungsten carbide powder | Edward R. Kimmel, Mary E. Shaffer, Thomas R. Pinkowski | 1987-05-12 |
| 4402737 | Method of producing tungsten and tungsten carbide powder | Christopher A. Kronenwetter, Edward R. Kimmel | 1983-09-06 |
| 4228214 | Flexible bilayered sheet, one layer of which contains abrasive particles in a volatilizable organic binder and the other layer of which contains alloy particles in a volatilizable binder, method for producing same and coating produced by heating same | James Q. Steigelman, Roger B. Bargainnier, Glenn A. Shaffer, deceased, by Irene S. Charland, administrator DBN CTA | 1980-10-14 |
| 4184868 | Method for producing extra fine cobalt metal powder | Joseph E. Ritsko, Howard L. Acla, Clarence D. Vanderpool, William Scheithauer, Jr. | 1980-01-22 |