Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845692 | Rapid access portal | Carl W. Kellem, George E. Riehm | 1998-12-08 |
| 4231325 | Modular, waste collecting and draining floor apparatus | — | 1980-11-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845692 | Rapid access portal | Carl W. Kellem, George E. Riehm | 1998-12-08 |
| 4231325 | Modular, waste collecting and draining floor apparatus | — | 1980-11-04 |