Changhui Li

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Lianyungang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Dry powder inhaler
- Patent number 11,931,506
- Issue date Mar 19, 2024
- Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
- Changhui Li
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Inhaler
- Patent number D912800
- Issue date Mar 9, 2021
- Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
- Changhui Li
- D24 - Medical and laboratory equipment
Information Patent Grant
Inhaler
- Patent number D888931
- Issue date Jun 30, 2020
- Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
- Changhui Li
- D24 - Medical and laboratory equipment

Patents Applicationslast 30 patents

Information Patent Application
New dry powder inhaler
- Publication number 20200360631
- Publication date Nov 19, 2020
- CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
- Changhui LI
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE