Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876148 | Ceramic bodies having a plurality of stress zones | — | 1989-10-24 |
| 4829027 | Liquid phase sintering of silicon carbide | Raymond Ashton Cutler, Andrew C. Hurford | 1989-05-09 |