| 8294353 |
Lighting apparatus having barrier coating for reduced mercury depletion |
István Károly Deme, Ottokar GYULASI, Gabriella Révész, Géza István Szeghy |
2012-10-23 |
| 7427829 |
Fluorescent lamp having improved barrier layer |
István Károly Deme, Judit Szigeti |
2008-09-23 |
| 7391041 |
Germicidal UV reactor and UV lamp |
Katalin Toth |
2008-06-24 |
| 6713950 |
Low volatility slurry for emission mix powder |
Thomas F. Soules |
2004-03-30 |
| 6369502 |
Low pressure mercury vapor discharge lamp with doped phosphor coating |
Zsuzsa Auber, Laszlo Balazs, István Károly Deme, Judit Szigeti |
2002-04-09 |
| 5917291 |
Electrodeless fluorescent lamp having an improved phosphor distribution arrangement and a method of making the same |
Thomas F. Soules, Judit Szigeti, Pamela K. Whitman, Laszlo Balazs |
1999-06-29 |
| 5004948 |
Luminescent material, especially for application in mercury vapor gas discharge light sources, and mercury vapor gas discharge light source |
Peter Kinczel, Laszlo Balazs |
1991-04-02 |
