Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D893633 | Board game piece | — | 2020-08-18 |
| 10714227 | Rotating radiation shutter collimator | Charles W. Aaron, Shuang Cui, Michael Liesenfelt, Paul RIDGEWAY, James Edward Baciak | 2020-07-14 |