Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891053 | Method of manufacturing biconvex lens elements and element formed thereby | Gerrit E. Bartman, Nicodemus Hattu, Willem Johannes Lindhout | 1990-01-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891053 | Method of manufacturing biconvex lens elements and element formed thereby | Gerrit E. Bartman, Nicodemus Hattu, Willem Johannes Lindhout | 1990-01-02 |