Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649811 | Combination motor and pump assembly | William P. Krol, Jr., Chahee P. Cho, Ralph Andrew Bedingfield | 1997-07-22 |
| 5607329 | Integrated motor/marine propulsor with permanent magnet blades | Chahee P. Cho, Ralph Andrew Bedingfield, William P. Krol, Jr. | 1997-03-04 |