Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356720 | Shaped self-supporting ceramic composite bodies comprising silicon nitrides | William B. Johnson, Marc S. Newkirk | 1994-10-18 |
| 5340655 | Method of making shaped ceramic composites with the use of a barrier and articles produced thereby | William B. Johnson, Marc S. Newkirk | 1994-08-23 |