Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8883767 | Low ether compositions and delivery apparatus | Gerald R. Dever, William Scott Rogersr, Robert C. Johnson | 2014-11-11 |
| 8066698 | Cryosurgery device | Harold A. Howlett, Robert C. Johnson, Charles E. Lundy | 2011-11-29 |
| 7604632 | Cryosurgery device | Harold A. Howlett, Robert C. Johnson, Charles E. Lundy | 2009-10-20 |