Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10618234 | Retroreflective sheeting | Kenneth L. Smith, James R. Imbertson, John C. Kelliher, Sidney A. Ellingstad | 2020-04-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10618234 | Retroreflective sheeting | Kenneth L. Smith, James R. Imbertson, John C. Kelliher, Sidney A. Ellingstad | 2020-04-14 |