Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8294353 | Lighting apparatus having barrier coating for reduced mercury depletion | Gabor Sajo, István Károly Deme, Gabriella Révész, Géza István Szeghy | 2012-10-23 |
| 7138757 | High lumen output fluorescent lamp with high color rendition | Katalin Toth, Colin Catherall | 2006-11-21 |