Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712916 | Apparatus for inspection of the walls of deep holes of minute diameter | — | 1987-12-15 |
| 4239586 | Etching of multiple holes of uniform size | Richard A. Ghez, Robert Hammer, James A. Van Vechten | 1980-12-16 |