Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347167 | Fine-grain semiconducting ceramic compositions | David A. Payne | 1982-08-31 |
| 4337162 | Internal boundary layer ceramic compositions | David A. Payne, Otto C. Jahnke | 1982-06-29 |