Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654246 | Methods of making composite ceramic articles having embedded filler | Marc S. Newkirk, Harry R. Zwicker, Andrew W. Urquhart, John P. Biel, Jr., Craig B. Shumaker +3 more | 1997-08-05 |
| 5637541 | Aluminum nitride refractory materials and methods for using the same | John P. Biel, Jr. | 1997-06-10 |