Issued Patents 2022
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11400560 | Retaining ring design | Jeonghoon Oh, Charles C. Garretson, Andrew J. Nagengast, Steven M. Zuniga, Edwin C. Suarez +2 more | 2022-08-02 |
| 11282755 | Asymmetry correction via oriented wafer loading | Charles C. Garretson, Huanbo Zhang, Zhize Zhu | 2022-03-22 |