Issued Patents All Time
Showing 1–4 of 4 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 |
| 9368993 | Method and apparatus for a multiplexed contact between electrical devices | Donald L. Flowers, John E. Herrmann, Bradley Long, Frederick J. Weissinger | 2016-06-14 |
| 9276421 | Portable rechargeable battery pack and external adapter for same | Frederick J. Weissinger, Warren B. Albert, Donald L. Flowers, Charles W. Friedli, John E. Herrmann | 2016-03-01 |
| 7302468 | Local area preference determination system and method | — | 2007-11-27 |