Assignee
LIU YANAN
US·4 granted patents·7 citations·filing 2015–2019
Top patents by PatentIndex Score
4 records- 0170US9982668B2Oil pumping apparatusLIU YANAN·Filed 2016·Granted May 29, 2018·1 cites·19 claims
- 0255USD908283SHairline maskLIU YANAN·Filed 2019·Granted Jan 19, 2021·6 cites·1 claims
- 0351US10458214B2Oil pumping apparatus without a speed reducerLIU YANAN·Filed 2018·Granted Oct 29, 2019·0 cites·20 claims
- 0435US10408200B2Flexible beam vertical pumping unitLIU YANAN·Filed 2015·Granted Sep 10, 2019·0 cites·7 claims
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