Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10618234 | Retroreflective sheeting | Kenneth L. Smith, John C. Kelliher, John A. Worrell, Sidney A. Ellingstad | 2020-04-14 |
| 9878507 | Retroflective sheeting | Kenneth L. Smith, John C. Kelliher, John A. Worrell, Sidney A. Ellingstad | 2018-01-30 |
| 8783879 | Retroreflective sheeting | Kenneth L. Smith, John C. Kelliher, John A. Worrell, Sidney A. Ellingstad | 2014-07-22 |
| 8371703 | Retroreflective sheeting | Kenneth L. Smith, John C. Kelliher, John A. Worrell, Sidney A. Ellingstad | 2013-02-12 |