Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509958 | Coating solution suitable for the manufacture of a magnesium oxide layer and a method of manufacturing such a layer | — | 1996-04-23 |
| 5254904 | Antireflective coating layer in particular for a cathode ray tube | Maarten Buijs | 1993-10-19 |
| 4693769 | Method of manufacturing a combination of synthetic resin elements | Johannes H. Fritz | 1987-09-15 |
| 4610933 | Duplication master suitable for the manufacture of electroplated copies | — | 1986-09-09 |
| 4545871 | Method of making an article having a layer of a nickel-phosphorus alloy and coated with a protective layer | Gerrit Krijl | 1985-10-08 |
| 4509161 | Optically readable information disc provided with a reflective optical structure | Jan C. Gijsbers | 1985-04-02 |
| 4497877 | Metal article layered with a nickel-phosphorus alloy and a protective coating | Gerrit Krijl | 1985-02-05 |
| 4273625 | Method of treating objects the surface of which consists of tin | Gerrit Krijl, Ewoud A. Boonzajer Flaes | 1981-06-16 |