Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4751148 | Luminescent aluminoborate glass and luminescent screen provided with such a glass | Theo J. A. Popma | 1988-06-14 |
| 4609582 | Dielectric glass in multilayer circuits and thick-film circuits comprising same | Alois J. M. Van Gorp | 1986-09-02 |
| 4573762 | Germanium-free optical fibers having large numerical apertures | Gijsbertus A. C. M. Spierings | 1986-03-04 |
| 4459510 | Lamp having a glass lamp vessel and Glass (Na-Ca-Ba-SiO.sub.2 with B.sub.2 O.sub.3 /Al.sub.2 O.sub.3 /ZrO.sub.2) suitable therefor | — | 1984-07-10 |
| 4439008 | Optical fiber of the graded index type and method of producing same | Gijsbertus A. C. M. Spierings | 1984-03-27 |
| 4439529 | Glass and glass objects | Hendrik Verweij, Jan Haisma | 1984-03-27 |
| 4436381 | Precision pressed glass object | Hendrik Verweij, Jan Haisma | 1984-03-13 |
| 4435200 | Method of preparing precision pressed glass object | Hendrik Verweij, Jan Haisma | 1984-03-06 |
| 4392167 | Magnetic head, method of producing the magnetic head | — | 1983-07-05 |
| 4348484 | Precision pressed glass object, glass, method of preparing glass | Hendrik Verweij, Jan Haisma | 1982-09-07 |