Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9780581 | Portable rechargeable battery pack and external adapter for same | Frederick J. Weissinger, Warren B. Albert, Donald L. Flowers, Charles W. Friedli, John E. Herrmann | 2017-10-03 |