Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10618234 | Retroreflective sheeting | Kenneth L. Smith, James R. Imbertson, John C. Kelliher, John A. Worrell | 2020-04-14 |
SE
Sidney A. Ellingstad
Overall (2020): #271,001 of 565,922Top 50%
1
Patents 2020