Laifeng Liu

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Cloth attachment device and cloth attachment method using the same
- Patent number 9,874,769
- Issue date Jan 23, 2018
- BOE TECHNOLOGY GROUP CO., LTD
- Qiang Xiang
- G02 - OPTICS
Information Patent Grant
Auto-switching tee joint, device and method for washing and drying...
- Patent number 9,803,757
- Issue date Oct 31, 2017
- BOE TECHNOLOGY GROUP CO., LTD
- Laifeng Liu
- B08 - CLEANING
Information Patent Grant
Apparatus for keeping a friction roller
- Patent number 9,776,294
- Issue date Oct 3, 2017
- BOE Technology Group Co., Ltd.
- Laifeng Liu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
CLOTH ATTACHMENT DEVICE AND CLOTH ATTACHMENT METHOD USING THE SAME
- Publication number 20160195738
- Publication date Jul 7, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- Qiang XIANG
- B32 - LAYERED PRODUCTS
Information Patent Application
AUTO-SWITCHING TEE JOINT, DEVICE AND METHOD FOR WASHING AND DRYING...
- Publication number 20160153570
- Publication date Jun 2, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- Laifeng LIU
- B08 - CLEANING
Information Patent Application
APPARATUS FOR KEEPING A FRICTION ROLLER
- Publication number 20160143436
- Publication date May 26, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- Laifeng Liu
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...