Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4654245 | Roll up floor mat | Roger L. Rumsey | 1987-03-31 |
| 4568587 | Roll-up floor mat with rigid rails | — | 1986-02-04 |
| 4430833 | Wall protection assembly | Edward M. Corman | 1984-02-14 |
| 4394718 | Mounting brackets for handrail system | — | 1983-07-19 |
| 4367517 | Illuminated handrail arrangement | — | 1983-01-04 |
| 4276728 | Dirt removing grid system for floors | Edward M. Corman | 1981-07-07 |
| 4184298 | Expansion joint filler strip and cover assembly | Edward M. Corman | 1980-01-22 |