Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7753754 | Submersible device with selectable buoyancy | Joseph Hewes Parrish, III, Cleighton L. Hilbert, Jr. | 2010-07-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7753754 | Submersible device with selectable buoyancy | Joseph Hewes Parrish, III, Cleighton L. Hilbert, Jr. | 2010-07-13 |