Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7497972 | Plastic molded body containing a fluorescent dye | Hans Lichtenstein, Guenther Ittmann | 2009-03-03 |
| 7052161 | Illuminative device | Hans Lichtenstein, Jann Schmidt, Guenther Ittmann | 2006-05-30 |