SHI JIA

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Zhengzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation process of food-grade potassium dihydrogen phosphate
- Patent number 11,584,647
- Issue date Feb 21, 2023
- WENGFU DAZHOU CHEMICAL CO., LTD.
- Jia Shi
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Method for detecting battery condition, electronic device using met...
- Patent number 11,502,343
- Issue date Nov 15, 2022
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- Jun-Wei Zhang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic device and method for detecting swiping of card
- Patent number 11,073,533
- Issue date Jul 27, 2021
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- Shi Jia
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic device and method for eliminating noises from recordings
- Patent number 11,011,150
- Issue date May 18, 2021
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- Shi Jia
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION PROCESS OF FOOD-GRADE POTASSIUM DIHYDROGEN PHOSPHATE
- Publication number 20210179429
- Publication date Jun 17, 2021
- WENGFU DAZHOU CHEMICAL CO., LTD.
- Jia SHI
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Application
METHOD FOR DETECTING BATTERY CONDITION, ELECTRONIC DEVICE USING MET...
- Publication number 20210126297
- Publication date Apr 29, 2021
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- JUN-WEI ZHANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRONIC DEVICE AND METHOD FOR DETECTING SWIPING OF CARD
- Publication number 20210003603
- Publication date Jan 7, 2021
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- SHI JIA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELECTRONIC DEVICE AND METHOD FOR ELIMINATING NOISES FROM RECORDINGS
- Publication number 20200211525
- Publication date Jul 2, 2020
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- SHI JIA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
VOICE CHAT AMELIORATION SYSTEM AND METHOD
- Publication number 20190297180
- Publication date Sep 26, 2019
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- SHI JIA
- G10 - MUSICAL INSTRUMENTS ACOUSTICS