Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11173579 | Inner retaining ring and outer retaining ring for carrier head | Hung Chih Chen, Mario David Silvetti, Yin Yuan, Samuel Chu-Chiang Hsu, Huanbo Zhang | 2021-11-16 |
| 11056350 | Retaining ring having inner surfaces with facets | Jeonghoon Oh, Steven M. Zuniga, Andrew J. Nagengast, Samuel Chu-Chiang Hsu | 2021-07-06 |