Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5936334 | Impregnated cathode with composite top coat | Georg Gartner | 1999-08-10 |
| 5518520 | Dispenser cathode and method of manufacturing a dispenser cathode | Robert H. Kane, Paul D. Goodell, Jacobus A. J. M. Deckers | 1996-05-21 |
| 5407633 | Method of manufacturing a dispenser cathode | Robert H. Kane, Paul D. Goodell, Jacobus A. J. M. Deckers | 1995-04-18 |
| 5261845 | Scandate cathode | Johannes van Esdonk, Josef J. van Lith | 1993-11-16 |
| 5064397 | Method of manufacturing scandate cathode with scandium oxide film | Jacobus E. Crombeen, Petrus Adrianus Maria Van Dorst, Johannes van Esdonk, Pieter Hokkeling, Josef J. van Lith | 1991-11-12 |
| 5006753 | Scandate cathode exhibiting scandium segregation | Jacobus E. Crombeen, Anton K. Niessen, Henricus J. H. Stoffelen | 1991-04-09 |
| 4904897 | Oxide cathode | Johannes van Esdonk, Jacobus Stoffels | 1990-02-27 |
| 4873052 | Method of manufacturing a scandate dispenser cathode and scandate dispenser cathode manufactured according to the method | Johannes van Esdonk, Wim Kwestroo | 1989-10-10 |
| 4594220 | Method of manufacturing a scandate dispenser cathode and dispenser cathode manufactured by means of the method | Pieter Hokkeling, Johannes van Esdonk, Josef J. van Lith | 1986-06-10 |
| 4471260 | Oxide cathode | Jacobus H. Jacobs, Peter Opmeer, Johannes A. T. Verhoeven | 1984-09-11 |
| 4277713 | Low-pressure gas discharge lamp and method for making | Johannes C. G. Vervest, Cornelis Peters, Laurentius C. J. Vroomen | 1981-07-07 |
| 4221988 | Low pressure gas discharge lamp having fibers evenly distributed between the electrodes | Petrus R. Van Ijzendoorn, Hendrik Roelofs | 1980-09-09 |