Li; Yingwen

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Yingwen.The latest application filed is for "a regeneration method for liquefied petroleum gas sweetening caustic".

Company Profile

7.5.5

Li; Yingwen - Beijing CN
Li; Yingwen - Qingdao CN
Li; Yingwen - Guangzhou CN
Li; Yingwen - Beijing City CN
LI; Yingwen - Guangzhou City CN
Li; Yingwen - Henan CN
LI; Yingwen - Zhengzhou CN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Regeneration method for liquefied petroleum gas sweetening caustic Grant 11,142,716 - Hu , et al. October 12, 2	2021-10-12
Method and apparatus for displaying a picture search result page, device and storage medium Grant 11,010,420 - Yan , et al. May 18, 2	2021-05-18
Method and system for determining contact angle of porous media Grant 10,969,321 - Yang , et al. April 6, 2	2021-04-06
Method for preparing maleate by selective catalytic oxidation of lignin Grant 10,807,938 - Li , et al. October 20, 2	2020-10-20
A Regeneration Method For Liquefied Petroleum Gas Sweetening Caustic App 20200291320 - Hu; Xuesheng ; et al.	2020-09-17
Method and System for Determining Contact Angle of Porous Media App 20190331579 - Yang; Yongfei ; et al.	2019-10-31
Method For Preparing Maleate By Selective Catalytic Oxidation Of Lignin App 20190322611 - LI; Xuehui ; et al.	2019-10-24
Mobile-type power equipment maintenance device Grant 10,259,372 - Wu , et al.	2019-04-16
Method And Apparatus For Displaying A Picture Search Result Page, Device And Storage Medium App 20180210888 - YAN; Yongbo ; et al.	2018-07-26
Mobile-type Maintenance Square-shaped Bin App 20170361753 - WU; Jiaxin ; et al.	2017-12-21

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