Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920297 | Electric lamp | Johannes M. A. van der Heijden, Cornelis Penning | 1990-04-24 |
| 4685946 | Method for the manufacture of glass bodies | Bernhard Lersmacher, Hans Lydtin | 1987-08-11 |
| 4495885 | Apparatus for transporting and depositing viscous materials | Gerardus Van Herwijnen | 1985-01-29 |
| 4460619 | Method for transporting and depositing viscous materials | Gerardus Van Herwijnen | 1984-07-17 |