Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5103608 | Non-slip luminescent device for surfaces such as stair treads | — | 1992-04-14 |
| 4952434 | Cushioning floor mat | Roger L. Rumsey | 1990-08-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5103608 | Non-slip luminescent device for surfaces such as stair treads | — | 1992-04-14 |
| 4952434 | Cushioning floor mat | Roger L. Rumsey | 1990-08-28 |