Changjun Yu

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
System and method for preparing ultrafine silica by leaching silica...
- Patent number 12,011,702
- Issue date Jun 18, 2024
- YUANCHU TECHNOLOGY (BEIJING) CO., LTD.
- Changjun Yu
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PREPARING AMMONIA BY USING AMMONIUM SALT AND SILICATE
- Publication number 20220234905
- Publication date Jul 28, 2022
- YUANCHU TECNOLOGY (BEIJING) CO., LTD.
- Changjun Yu
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SYSTEM AND METHOD FOR PREPARING ULTRAFINE SILICA BY LEACHING SILICA...
- Publication number 20220204352
- Publication date Jun 30, 2022
- Yuanchu Technology (Beijing) Co., Ltd.
- Changjun Yu
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PREPARATION DEVICE AND PREPARATION METHOD OF AMMONIA GAS
- Publication number 20220098048
- Publication date Mar 31, 2022
- Yuanchu Technology (Beijing) Co., Ltd.
- Qi Wang
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD AND SYSTEM FOR PREPARING HYDROGEN CHLORIDE AND AMMONIA GAS B...
- Publication number 20220024762
- Publication date Jan 27, 2022
- Yuanchu Technology (Beijing) Co., Ltd.
- Changjun Yu
- C01 - INORGANIC CHEMISTRY