Youjun Dai

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Multifunctional electric tool
- Patent number 8,896,240
- Issue date Nov 25, 2014
- Chervon (HK) Limited
- Youjun Dai
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Power tool with a shield
- Patent number 8,784,164
- Issue date Jul 22, 2014
- Chervon (HK) Limited
- Youjun Dai
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
MULTIFUNCTIONAL ELECTRIC TOOL
- Publication number 20120326637
- Publication date Dec 27, 2012
- CHERVON (HK) LIMITED
- Youjun Dai
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
POWER TOOL WITH A SHIELD
- Publication number 20110195643
- Publication date Aug 11, 2011
- CHERVON (HK) LIMITED
- Youjun Dai
- B24 - GRINDING POLISHING
Information Patent Application
MIXER
- Publication number 20070008816
- Publication date Jan 11, 2007
- Nanjing Chervon Industry Co., Ltd.
- Youjun Dai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
MEANS FOR CONNECTING DRIVING SHAFT AND MIXING PADDLE OF A MIXER
- Publication number 20070002684
- Publication date Jan 4, 2007
- Nanjing Chervon Industry Co., Ltd.
- Youjun Dai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR