Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8371002 | Locking clip for a sign tensioning system | Robert Lee Franklin, John D. Gibb | 2013-02-12 |
| 7367462 | Billboard advertising copy hoist system | Paul T. Riedl | 2008-05-06 |
| 7025218 | Billboard advertising copy hoist system | Paul T. Riedl | 2006-04-11 |