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Xiaofeng ZHANG

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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    FREQUENCY TUNABLE RESONATOR
    • Publication number 20250158266
    • Publication date May 15, 2025
    • Huawei Technologies Co., Ltd
    • Nilsánu Johan Pirak Sikku
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    BAND-STOP FILTER AND ELECTRONIC DEVICE
    • Publication number 20220247057
    • Publication date Aug 4, 2022
    • Huawei Technologies Co., Ltd
    • Yantao LI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    DIELECTRIC FILTER, DUPLEXER, AND COMMUNICATIONS DEVICE
    • Publication number 20210328315
    • Publication date Oct 21, 2021
    • Huawei Technologies Co., Ltd
    • Dan LIANG
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Dielectric Duplexer
    • Publication number 20210320390
    • Publication date Oct 14, 2021
    • Huawei Technologies Co., Ltd
    • Dan LIANG
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    DIELECTRIC FILTER AND COMMUNICATIONS DEVICE
    • Publication number 20210249746
    • Publication date Aug 12, 2021
    • Huawei Technologies Co., Ltd
    • Xiaofeng ZHANG
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    INPUT/OUTPUT APPARATUS OF MULTIPLEXER, AND MULTIPLEXER
    • Publication number 20200136583
    • Publication date Apr 30, 2020
    • Huawei Technologies Co., Ltd
    • Xiaofeng ZHANG
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    FILTER AND COMMUNICATIONS DEVICE
    • Publication number 20190280358
    • Publication date Sep 12, 2019
    • Huawei Technologies Co., Ltd
    • Xiaofeng ZHANG
    • H01 - BASIC ELECTRIC ELEMENTS