Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8728835 | Light scattering by controlled porosity in optical ceramics for LEDs | Jacobus Gerardus Boerkekamp, Oliver Steigelmann, Johannes F. M. Cillessen | 2014-05-20 |
| 8506130 | Optical element for a light emitting device and a method of manufacturing thereof | Johannes Franciscus Maria Cillessen, Hendrik Johannes Boudewijn Jagt, Oliver Steigelmann | 2013-08-13 |
| 7521869 | Electric discharge lamp with halide resistant conductor | Govert Nieuwland, Johannes Franciscus Maria Cillessen | 2009-04-21 |
| 7459220 | Electroluminescent panel | Rifat Ata Mustafa Hikmet, Eliav Haskal | 2008-12-02 |
| 7326495 | Hydrogen storage material with high storage capacity | Martin Ouwerkerk, Danielle Beelen, Wilhelmus Cornelis Keur | 2008-02-05 |
| 7239072 | Fluorescent lamp and method of manufacturing | Ingrid Jozef Maria Snijkers-Hendrickx, Wilhelmus Cornelis Keur | 2007-07-03 |
| 6992430 | Electric discharge lamp | Johannes Franciscus Maria Cillessen | 2006-01-31 |
| 6800350 | Moisture-absorption sheet | Rifat Ata Mustafa Hikmet | 2004-10-05 |
| 6759801 | Low-pressure mercury vapor discharge lamp | Ingrid Jozef Maria Snijkers-Hendrickx, Volker Dirk Hildenbrand | 2004-07-06 |