Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4199621 | Method of producing iron oxide photo masks | Theo J. A. Popma | 1980-04-22 |
MK
Maria G. J. Kamminga-Schrijnemakers
Overall (All Time): #4,110,572 of 4,157,543Top 100%
1
Patents All Time