Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4262378 | Buoyant capsule depth controller | Charles A. Phillips, Edward W. McGraw | 1981-04-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4262378 | Buoyant capsule depth controller | Charles A. Phillips, Edward W. McGraw | 1981-04-21 |