Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8380269 | Arrangement for providing a constant contract pressure for a probe | Zhang Xiqin | 2013-02-19 |
| 8227743 | Apparatus for selecting light of a single wavelength | Zhang Xiqin | 2012-07-24 |