Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496897 | Variable voltage control for self-excited self-regulated synchronous alternator | Lewis E. Unnewehr, Robert B. Walker | 1985-01-29 |
| 4408152 | Single phase, self-regulated alternator | Robert B. Walker | 1983-10-04 |
| 4305001 | Constant frequency alternator | S. R. Murthy Vamaraju | 1981-12-08 |