Xiaofeng ZHANG

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Patents Grantslast 30 patents

Information Patent Grant
Band-stop filter and electronic device
- Patent number 12,034,195
- Issue date Jul 9, 2024
- Huawei Technologies Co., Ltd.
- Yantao Li
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dielectric duplexer
- Patent number 11,978,940
- Issue date May 7, 2024
- Huawei Technologies Co., Ltd.
- Dan Liang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dielectric filter, duplexer, and communications device
- Patent number 11,909,086
- Issue date Feb 20, 2024
- Huawei Technologies Co., Ltd.
- Dan Liang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dielectric filter and communications device
- Patent number 11,509,030
- Issue date Nov 22, 2022
- Huawei Technologies Co., Ltd.
- Xiaofeng Zhang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Input/output apparatus of multiplexer, and multiplexer
- Patent number 10,917,066
- Issue date Feb 9, 2021
- Huawei Technologies Co., Ltd.
- Xiaofeng Zhang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filter and communications device
- Patent number 10,818,989
- Issue date Oct 27, 2020
- Huawei Technologies Co., Ltd.
- Xiaofeng Zhang
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

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