Patents by Inventor Lifang Cen

Lifang Cen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240059694
    Abstract: The invention provides a compound containing a 1,3-benzodioxol structure and a preparation method and use thereof. The invention discloses a 1,3-benzodioxol derivative as shown in general formula (1). Results of pharmacological experiments indicate that compound (I) of the invention can exert excellent inhibition on both BTK and JAK3 kinases, and can be used to prepare medicines for treating rheumatoid arthritis caused by over-activation of BTK and/or JAK3 pathways. The invention further discloses a preparation method for the 1,3-benzodioxol derivative.
    Type: Application
    Filed: March 24, 2022
    Publication date: February 22, 2024
    Applicant: XI'AN XINTONG PHARMACEUTICAL RESEARCH CO., LTD.
    Inventors: Yungen XU, Tingting LIANG, Qihua ZHU, Junjie WANG, Lifang CEN, Wenjie WANG, Jiaming JIN
  • Patent number: 10554655
    Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 4, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Xiaolong Zhang, Yonglong Wei, Wen Zha, Lifang Cen, Junhong Yan, Wenhao Huang
  • Patent number: 10276168
    Abstract: Embodiments of the present invention provide a voiceprint verification method and device. The voiceprint verification method comprises receiving verification voice data relating to a verification phrase; generating a verification voiceprint on the basis of said verification voice data; determining whether a similarity value between the verification voiceprint and a reference voiceprint conforms to a preset similarity value; and, if the similarity value between the verification voiceprint and a reference voiceprint conforms to a preset similarity value, then determining there is a match between the verification voiceprint and the reference voiceprint.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 30, 2019
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Xiao Sun, Zongzhuo Wu, Qiang Long, Ling Li, Lifang Cen, Xiang Zhang, Runjia Huang, Hui Wang
  • Publication number: 20190124076
    Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 25, 2019
    Inventors: Xiaolong ZHANG, Yonglong WEI, Wen ZHA, Lifang CEN, Junhong YAN, Wenhao HUANG
  • Patent number: 10200362
    Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 5, 2019
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Xiaolong Zhang, Yonglong Wei, Wen Zha, Lifang Cen, Junhong Yan, Wenhao Huang
  • Publication number: 20170092276
    Abstract: Embodiments of the present invention provide a voiceprint verification method and device. The voiceprint verification method comprises receiving verification voice data relating to a verification phrase; generating a verification voiceprint on the basis of said verification voice data; determining whether a similarity value between the verification voiceprint and a reference voiceprint conforms to a preset similarity value; and, if the similarity value between the verification voiceprint and a reference voiceprint conforms to a preset similarity value, then determining there is a match between the verification voiceprint and the reference voiceprint.
    Type: Application
    Filed: December 12, 2016
    Publication date: March 30, 2017
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Xiao SUN, Zongzhuo WU, Qiang LONG, Ling LI, Lifang CEN, Xiang ZHANG, Runjia HUANG, Hui WANG
  • Patent number: 9450939
    Abstract: A method and apparatus for service login to a service provider sites have been disclosed. The method including: receiving a login request from a user, wherein the login request comprises at least both terminal's login information input by the user and third party account information pertaining to the user; after successful verification on the third party account information, determining by the service provider, whether the terminal's login information input by the user matches to reference login information, wherein the reference login information comprises specific information of the user to further identify user's identity; if the terminal's login information matches to at least a portion of the reference login information, delivering service to the terminal according to the third party account information.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: September 20, 2016
    Assignee: Tencent Technology (Shenzhen) Co., Ltd.
    Inventors: Hao Zhou, Wenrui Zhang, Hui Wang, Tianqing Huang, Wen Cha, Lifang Cen, Jinfu Deng
  • Publication number: 20160255078
    Abstract: Method and server system for user login verification are disclosed. The method includes: obtaining a verification request from a first device for an account operation requested by a user using a first account; identifying, from the server system, usage history data associated with the first account, including data regarding usage of the first account on the first device; determining, in accordance with the data regarding the usage of the first account on the first device and one or more predetermined usage history criteria, whether the account operation associated with the first account on the first device is safe; and in accordance with a determination that the account operation associated with the first account on the first device is not safe, initiating a verification process based on a second device that qualifies as being safe for the account operation.
    Type: Application
    Filed: May 13, 2016
    Publication date: September 1, 2016
    Inventors: XIAOLONG ZHANG, YONGLONG WEI, WEN ZHA, LIFANG CEN, JUNHONG YAN, WENHAO HUANG
  • Publication number: 20150096004
    Abstract: A method and apparatus for service login to a service provider sites have been disclosed. The method including: receiving a login request from a user, wherein the login request comprises at least both terminal's login information input by the user and third party account information pertaining to the user; after successful verification on the third party account information, determining by the service provider, whether the terminal's login information input by the user matches to reference login information, wherein the reference login information comprises specific information of the user to further identify user's identity; if the terminal's login information matches to at least a portion of the reference login information, delivering service to the terminal according to the third party account information.
    Type: Application
    Filed: September 16, 2014
    Publication date: April 2, 2015
    Inventors: Hao Zhou, Wenrui Zhang, Hui Wang, Tianqing Huang, Wen Cha, Lifang Cen, Jinfu Deng