Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402925 | Porous free standing pyrolytic boron nitride articles | Thomas C. Keyes | 1983-09-06 |
| 4264803 | Resistance-heated pyrolytic boron nitride coated graphite boat for metal vaporization | — | 1981-04-28 |