Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324694 | Silicon nitride/boron nitride composite with enhanced fracture toughness | Daniel R. Petrak | 1994-06-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324694 | Silicon nitride/boron nitride composite with enhanced fracture toughness | Daniel R. Petrak | 1994-06-28 |