Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9947163 | Authentication of security documents and mobile device to carry out the authentication | Volker Lohweg, Jan Hoffmann, Helene DÖRKSEN, Eugen Gillich, Jürg Hofmann +1 more | 2018-04-17 |
| 5734230 | Fail-safe lighting system with load shedding and dimming | M. Larry Edwards, Mark Brown, Allan A. Nostwick | 1998-03-31 |
| 5633564 | Modular uninterruptible lighting system | M. Larry Edwards, Allan A. Nostwick | 1997-05-27 |