Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8709276 | Synthetic refrigeration oil composition for HFC applications | Liwen Wei | 2014-04-29 |
| 8268188 | Synthetic refrigeration oil composition for HFC applications | Liwen Wei | 2012-09-18 |
| 8123974 | Synthetic refrigeration oil composition for HFC applications | Liwen Wei | 2012-02-28 |
| 8043524 | Synthetic refrigeration oil composition for HFC applications | Liwen Wei | 2011-10-25 |