Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906434 | Electric utility system with superconducting magnetic energy storage | Paul F. Koeppe, Arnold P. Kehrli, John A. Diaz De Leon, II, Donald L. Brown, Douglas C. Folts | 2005-06-14 |