Feng Zhu

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Ningbo, CN

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Patents Grantslast 30 patents

Information Patent Grant
Flat-pen automatic assembly line
- Patent number 9,321,296
- Issue date Apr 26, 2016
- Beifa Group Co., Ltd.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Vibrating device for uniform filling of granular ornaments
- Patent number 9,221,560
- Issue date Dec 29, 2015
- Beifa Group Co., Ltd.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Writing Board
- Publication number 20170267016
- Publication date Sep 21, 2017
- Ningbo ZhiBao Stationery Co., Ltd
- Feng Zhu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
VIBRATING DEVICE FOR UNIFORM FILLING OF GRANULAR ORNAMENTS
- Publication number 20130167487
- Publication date Jul 4, 2013
- BEIFA GROUP CO., LTD.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
FLAT-PEN AUTOMATIC ASSEMBLY LINE
- Publication number 20130167371
- Publication date Jul 4, 2013
- BEIFA GROUP CO., LTD.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
FOUNTAIN-PEN AUTOMATIC ASSEMBLY LINE
- Publication number 20130168202
- Publication date Jul 4, 2013
- BEIFA GROUP CO., LTD.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
INK-FILLING MACHINE FOR WRAP-AROUND CORE
- Publication number 20130167973
- Publication date Jul 4, 2013
- BEIFA GROUP CO., LTD.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
PEN TIP PEENING MACHINE
- Publication number 20130167370
- Publication date Jul 4, 2013
- BEIFA GROUP CO., LTD.
- Cailiang Dong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES