Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9711688 | Controlling LED emission pattern using optically active materials | Daniel Roitman, Mark Melvin Butterworth, Hans-Helmut Bechtel, Danielle Russell Chamberlin, Joan Liu | 2017-07-18 |
| 9543478 | Light emitting device including a filter and a protective layer | April D. Schricker, Hans-Helmut Bechtel, Kim Kevin Mai, Thomas Diederich, Joost Peter Andre Vogels +1 more | 2017-01-10 |