Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10514482 | Multi-layer optical films | Timothy J. Hebrink, Mark D. Weigel | 2019-12-24 |
| 10450332 | Sterically hindered amine and oxyalkyl amine light stabilizers | Thomas P. Klun, Joseph C. Spagnola, Alan K. Nachtigal, Charles J. Hoy, Richard J. Pokorny +4 more | 2019-10-22 |
| 10227688 | Moisture resistant coating for barrier films | Alan K. Nachtigal, Mark D. Weigel | 2019-03-12 |