Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11415133 | Multi-stage dry roots vacuum pump | Dongsheng Ding, Weiguo Ren | 2022-08-16 |
| 7899506 | Composite spectral measurement method and its spectral detection instrument | Kexin Xu, Renda Wang | 2011-03-01 |