Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10129950 | Lighting relay panel features for improved safety and reliability | Justin Bierschbach, Frank Pelliccio, Dalibor Zulim | 2018-11-13 |
| 6354028 | Rotatable multi-faced sign | Robert J Harruff | 2002-03-12 |
| 6149281 | Neon lighting fixture | Robert J Harruff | 2000-11-21 |
| 5979093 | Changeable information scroll sign module | Robert J Harruff | 1999-11-09 |