Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11295245 | Method and system for ecological operation of total phosphorus export of cascade hydropower station | Yu Ngok Li, Jiahui Deng, Wei Ding, Huicheng Zhou, Chi Zhang | 2022-04-05 |
| 9556004 | Apparatus, system, and method for controlling a handrail of an escalator | Tai Zhou, Cai Liang | 2017-01-31 |
| 7191657 | Currency processing system with fitness detection | Ken W. Maier, Marek Baranowski, Charles H. Cummings, John M. Mikkelsen, Brian Muszynski | 2007-03-20 |
| 6962247 | Currency processing system with fitness detection | Ken W. Maier, Marek Baranowski, Charles H. Cummings, John M. Mikkelsen, Brian Muszynski | 2005-11-08 |
| 6913260 | Currency processing system with fitness detection | Ken W. Maier, Marek Baranowski, Charles H. Cummings, John M. Mikkelsen, Brian Muszynski | 2005-07-05 |
| 6234294 | Method and system for recognition of currency by denomination | Michael L. Defeo, Jack Denison, John M. Mikkelsen, Peter Truong, Kenneth W. Maier +1 more | 2001-05-22 |