Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4536697 | Vehicle electrical energy management system | Ralph Johnston, Leonard J. Sheldrake | 1985-08-20 |
| 4459489 | Generator load response control | Thomas E. Kirk, Leonard J. Sheldrake | 1984-07-10 |