Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9404637 | Color shift sign | Ellen O. Aeling, Michael A. Meis, John T. Simpson, Joseph A. Hoffman | 2016-08-02 |
| 9354386 | Solid state area light and spotlight with light guide and integrated thermal guide | Raymond P. Johnston, Robert L. Brott, Karl J. L. Geisler, Martin J. Vos | 2016-05-31 |
| 9291752 | Retroreflecting optical construction | William D. Coggio, John S. Huizinga, Michael L. Steiner, Robert F. Watkins, Encai Hao +7 more | 2016-03-22 |
| 9267674 | Solid state light with enclosed light guide and integrated thermal guide | Raymond P. Johnston, Charles N. DeVore, Martin J. Vos, Robert L. Brott, Kayla A. Hagens +4 more | 2016-02-23 |