Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4895585 | Method of manufacturing lens elements | Johannes H. Angenent, Nicodemus Hattu, Petrus A. Lemmens, Cornelis J. T. Potters, Johan C. Wijn | 1990-01-23 |
| 4617206 | Method of manufacturing a layer of an oxide of an element from group IVa | Jan Haisma, Johannes M. M. Pasmans, Udo K. P. Biermann | 1986-10-14 |