Assignee
WEI LIWEN
US·4 granted patents·2 citations·filing 2007–2021
Top patents by PatentIndex Score
4 records- 0177US8268188B2Synthetic refrigeration oil composition for HFC applicationsWEI LIWEN·Filed 2011·Granted Sep 18, 2012·1 cites·13 claims
- 0265US8123974B2Synthetic refrigeration oil composition for HFC applicationsWEI LIWEN·Filed 2007·Granted Feb 28, 2012·1 cites·14 claims
- 0360US8709276B2Synthetic refrigeration oil composition for HFC applicationsWEI LIWEN·Filed 2012·Granted Apr 29, 2014·0 cites·17 claims
- 0456US12410378B2Methods of making pol yurea powders, gels and greases, and related compositions made therefromWEI LIWEN·Filed 2021·Granted Sep 9, 2025·0 cites·29 claims
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