Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7800309 | Low-pressure mercury vapor discharge lamp and apparatus for treatment | Theodorus Herman Ketelaar, Olaf Mastenbroek, Roland Blasig | 2010-09-21 |
| 7518314 | Red-colored electric lamp | Maarten Walter Steinmann, Hubertina Maria Petra Ulenaers, Simon Flink | 2009-04-14 |
| 7352131 | Electric lamp comprising a lead-free glass component | Roland Blasig | 2008-04-01 |
| 7276853 | Low-pressure mercury vapor discharge lamp | Adrianus Johannes Hendricus Petrus Van Der Pol, Leonie Maria Geerdinck, Engelbertus Cornelius Petrus Maria Vossen, Ingrid Jozef Maria Snijkers-Hendrickx, Roland Blasig +1 more | 2007-10-02 |
| 6744207 | Lead-free amber-colored electric lamp | Hubertina Maria Petra Ulenaers, Cornelis Jacob Van De Velde | 2004-06-01 |