Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440586 | Method of manufacturing a die for duplicating plastics information carriers | Gerardus J. M. Lippits, Arnoldus J. M. van den Broek, Adriaan J. G. Op Het Veld, Jelis De Jonge | 1984-04-03 |
| 4399090 | Method of producing mouldings and layers of inorganic materials | Wilhelmus Sprangers | 1983-08-16 |
| 4275091 | Method of duplicating plastics information carriers | Gerardus J. M. Lippits, Arnoldus J. M. van den Broek, Adriaan J. G. Op Het Veld, Jelis De Jonge | 1981-06-23 |
| 4272574 | Optically readable information disc | Gerardus J. M. Lippits, Arnoldus J. M. van den Broek | 1981-06-09 |
| 4188433 | Record carrier in disk form having cover layers | Arnoldus J. M. van den Broek, Gerardus J. M. Lippits | 1980-02-12 |