Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638263 | Low and medium voltage PWM AC/DC power conversion method and apparatus | Kenneth E. Opal, Peter Willard Hammond | 1997-06-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638263 | Low and medium voltage PWM AC/DC power conversion method and apparatus | Kenneth E. Opal, Peter Willard Hammond | 1997-06-10 |