Qunwei JIA

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Patents Grantslast 30 patents

Information Patent Grant
Hand-held battery operated sprayer with rotatable spray lance
- Patent number 11,426,747
- Issue date Aug 30, 2022
- HANGZHOU WEIRRAN MACHINERY CO., LTD
- Qunwei Jia
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

Information Patent Application
HAND-HELD BATTERY OPERATED SPRAYER WITH ROTATABLE SPRAY LANCE
- Publication number 20210129164
- Publication date May 6, 2021
- Hangzhou Weirran Machinery Co., Ltd
- Qunwei JIA
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
MULTI-MODE HIGH-PRESSURE FOAM LANCE
- Publication number 20200290064
- Publication date Sep 17, 2020
- Hangzhou Weirran Machinery Co., Ltd
- Qunwei JIA
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...