Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271515 | Multi-tiered display | Steven E. Berkheimer, Jim Durish, Edward J. Keogh | 1993-12-21 |
| D338241 | Advertising product dispaly sign | — | 1993-08-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271515 | Multi-tiered display | Steven E. Berkheimer, Jim Durish, Edward J. Keogh | 1993-12-21 |
| D338241 | Advertising product dispaly sign | — | 1993-08-10 |