Patents by Inventor KeFeng Yang

KeFeng Yang 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).

  • Application of naphthenic imidazoline in inhibiting formation of natural gas hydrates and composition containing same
    Patent number: 12319871
    Abstract: Naphthenic imidazoline can be used in inhibiting formation of natural gas hydrate. A composition contains the naphthenic imidazoline and modified polysaccharide. The modified polysaccharide may be cationic amylose.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: June 3, 2025
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC EXPLORATION & PRODUCTION RESEARCH INSTITUTE
    Inventors: Lihong Yang, Jiayuan He, Haibo Wang, Shengyou Zhou, Xin Huang, Kefeng Yang, Shibo Hao, Le Zhang, Xueqi Cen, Guoxing Chai
  • APPLICATION OF NAPHTHENIC IMIDAZOLINE IN INHIBITING FORMATION OF NATURAL GAS HYDRATES AND COMPOSITION CONTAINING SAME
    Publication number: 20240376369
    Abstract: The present invention relates to use of naphthenieNaphthenic imidazoline can be used in inhibiting formation of natural gas hydrate, and a A composition containing the same. The composition comprisescontains the naphthenic imidazoline and modified polysaccharide. The modified polysaccharide may be cationic amylose.
    Type: Application
    Filed: September 29, 2021
    Publication date: November 14, 2024
    Inventors: Lihong YANG, Jiayuan HE, Haibo WANG, Shengyou ZHOU, Xin HUANG, Kefeng YANG, Shibo HAO, Le ZHANG, Xueqi CEN, Guoxing CHAI
  • Information retrieval center gateway
    Patent number: 7366712
    Abstract: A method, apparatus, and gateway allows a variety of client devices to access information from current information providers, and the information is adapted to accommodate the differing formats of the client devices. Speech processing, text-to-speech (TTS), speech feature transmission on heterogeneous networks, quality of service (QoS) support for real-time applications, transcoding, transformation, publish rendering, multimedia contents analysis, and speech coding may be supported.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: April 29, 2008
    Assignee: Intel Corporation
    Inventors: Liang He, XiaoGang Zhu, Chung Yun Yeung, Jing Yong Zhu, KeFeng Yang, ChuanQuan Xie
  • Information retrieval center
    Publication number: 20020184197
    Abstract: A method, apparatus, and gateway allows a variety of client devices to access information from current information providers, and the information is adapted to accommodate the differing formats of the client devices. Speech processing, text-to-speech (TTS), speech feature transmission on heterogeneous networks, quality of service (QoS) support for real-time applications, transcoding, transformation, publish rendering, multimedia contents analysis, and speech coding may be supported.
    Type: Application
    Filed: August 23, 2001
    Publication date: December 5, 2002
    Applicant: Intel Corporation
    Inventors: Liang He, XiaoGang Zhu, Chung Yun Yeung, Jing Yong Zhu, KeFeng Yang, ChuanQuan Xie
  • Uninterruptible power supply
    Patent number: D942398
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: February 1, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventors: Kefeng Yang, Jihong Deng, Chuanqing Qi
  • Uninterruptible power supply
    Patent number: D986829
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: May 23, 2023
    Assignee: Eaton Intelligent Power Limited
    Inventors: Kefeng Yang, Jihong Deng, Chuanqing Qi
  • Uninterruptible power supply
    Patent number: D991884
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: July 11, 2023
    Assignee: Eaton Intelligent Power Limited
    Inventors: Justin John Adleff, Kefeng Yang, Jihong Deng, Chuanqing Qi, Benjamin Hannigan