Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7794125 | Luminous element comprising at least one substrate and a light-emitting coating | Volkmar Offermann, Helmut Maeuser | 2010-09-14 |
| 7056586 | Laminated glazing unit and a process for manufacturing thereof with a corrosion-protected transparent surface coating | Walter Goerenz, Ullrich Billert, Walter Nievelstein, Rolf Van Der Meulen, Volkmar Offermann | 2006-06-06 |