Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4552800 | Composite inorganic structures | Robert Smith-Johannsen | 1985-11-12 |
| 4428895 | Composite inorganic structures and process of producing same | Robert Smith-Johannsen | 1984-01-31 |