Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845058 | Process for improving strength of SiC ceramics | John Semen | 1989-07-04 |
| 4835207 | Preceramic compositions and ceramic products | John Semen | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845058 | Process for improving strength of SiC ceramics | John Semen | 1989-07-04 |
| 4835207 | Preceramic compositions and ceramic products | John Semen | 1989-05-30 |