Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9791128 | Curved light duct extraction | Vadim N. Savvateev, Thomas R. Corrigan | 2017-10-17 |
| 9683718 | Light duct elbow for ducted illumination | Karl J. L. Geisler, Thomas R. Corrigan | 2017-06-20 |
| 9551827 | Hollow light duct bend | Steven H. Kong | 2017-01-24 |