Li; Changhong

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Changhong.The latest application filed is for "crystal of polymyxin b1 sulfate, polymyxin b2 sulfate or their mixture and preparation method thereof".

Company Profile

4.9.7

Li; Changhong - Wuhan CN
Li; Changhong - Qingdao CN
Li; Changhong - Henan CN
LI; Changhong - Jinshui District Zhengzhou Henan
Li; Changhong - Espoo N/A FI

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

Patent Activity

Patent	Date
Crystal Of Polymyxin B1 Sulfate, Polymyxin B2 Sulfate Or Their Mixture And Preparation Method Thereof App 20210283213 - Li; Xiaobing ; et al.	2021-09-16
Method for measuring and dynamically modulating characteristics of slow light in photonic-crystal coupled-cavity waveguide Grant 10,795,081 - Li , et al. October 6, 2	2020-10-06
Polymyxin B Sulfate Crystal And Preparation Method Thereof App 20190256557 - Wang; Zengxia ; et al.	2019-08-22
Pesticidal aryl pyrrole nitrile compound, preparation method for same, uses thereof, agricultural pesticide, and pest control method Grant 10,321,682 - Xu , et al.	2019-06-18
Pesticidal Aryl Pyrrole Nitrile Compound, Preparation Method For Same, Uses Thereof, Agricultural Pesticide, And Pest Control Method App 20190059379 - XU; Bo ; et al.	2019-02-28
System and method for using quarantine networks to protect cellular networks from viruses and worms Grant 9,705,911 - Li , et al. July 11, 2	2017-07-11
Generating keys for protection in next generation mobile networks Grant 9,554,271 - Li , et al. January 24, 2	2017-01-24
Support of UICC-less calls Grant 8,526,408 - Zhang , et al. September 3, 2	2013-09-03
Support Of Uicc-less Calls App 20100142499 - Zhang; Dajiang ; et al.	2010-06-10
Communication system Grant 7,469,145 - Li December 23, 2	2008-12-23
Generating keys for protection in next generation mobile networks App 20080184032 - Li; Changhong ; et al.	2008-07-31
System and method for using quarantine networks to protect cellular networks from viruses and worms App 20070006312 - Li; Changhong ; et al.	2007-01-04
Communication system App 20050176438 - Li, Changhong	2005-08-11

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