Li; Guihua

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; Guihua.The latest application filed is for "electric motor and magnetic core thereof".

Company Profile

1.9.11

Li; Guihua - Shenzhen CN
Li; Guihua - Jinan CN
Li, Guihua - Guangzhou CN

*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
Electric motor and magnetic core thereof Grant 10,637,307 - Li , et al.	2020-04-28
Cleaning robot Grant D835,869 - Li Dec	2018-12-11
Electric Motor And Magnetic Core Thereof App 20180191209 - LI; Yue ; et al.	2018-07-05
Method, apparatus, and system for cross-platform conference convergence Grant 9,106,716 - Zhou , et al. August 11, 2	2015-08-11
Compressed air single-action actuator App 20130255479 - Liu; Chunxiu ; et al.	2013-10-03
Method, system and device for playing enterprise color ringback tone Grant 8,462,916 - Li , et al. June 11, 2	2013-06-11
Method, Apparatus, And System For Cross-platform Conference Convergence App 20130094671 - Zhou; Riming ; et al.	2013-04-18
Call control method, communication system, and relevant devices Grant 8,335,201 - Yi , et al. December 18, 2	2012-12-18
Call processing method, system and equipment of same number service Grant 8,284,767 - Yi , et al. October 9, 2	2012-10-09
Method, system and equipment for shifting call based on a mobile terminal with the same number and a soft terminal Grant 8,270,982 - Yi , et al. September 18, 2	2012-09-18
Method, system and device for playing enterprise color ringback tone Grant 8,149,998 - Li , et al. April 3, 2	2012-04-03
Method, System And Device For Playing Enterprise Color Ringback Tone App 20120063583 - LI; Guihua ; et al.	2012-03-15
Call Control Method, Communication System, and Revelant Devices App 20110110298 - YI; Zhiquan ; et al.	2011-05-12
Method, System And Equipment For Shifting Call Based On A Mobile Terminal With The Same Number And A Soft Terminal App 20110021200 - YI; Zhiquan ; et al.	2011-01-27
Call processing method, system and equipment of same number service App 20100220719 - Yi; Zhiquan ; et al.	2010-09-02
Method, System And Device For Playing Enterprise Color Ringback Tone App 20100020945 - Li; Guihua ; et al.	2010-01-28
Method, System And Vpbx For Sending Short Messages App 20090054032 - REN; Zhibin ; et al.	2009-02-26
Cryptotanshinone for preventing and alleviating alzheimer's disease App 20040039050 - Gu, Lianquan ; et al.	2004-02-26

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