Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6426827 | Electrochromic or photoelectrochromic device | Pierre Bonhote, Lorenz Walder | 2002-07-30 |
| 6335480 | Photovoltaic cell | Udo Bach, Josef Salbeck, Frank Weissörtel, Donald Lupo | 2002-01-01 |