Huifeng Yu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Plastic material for printing by dye diffusion thermal transfer pri...
- Patent number 11,807,025
- Issue date Nov 7, 2023
- Evonik Operations GmbH
- Huifeng Yu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
POLYMER BASED COMPOSITE SUITABLE FOR BOTH LASER MARKING AND PRINTIN...
- Publication number 20210268823
- Publication date Sep 2, 2021
- Evonik Specialty Chemicals (Shanghai) Co., Ltd.
- Huifeng Yu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LASER MARKABLE MATERIALS COMPRISING A POLYAMIDE COMPONENT AND CARBO...
- Publication number 20210213717
- Publication date Jul 15, 2021
- Evonik Operations GmbH
- Huifeng YU
- B32 - LAYERED PRODUCTS
Information Patent Application
PLASTIC MATERIAL FOR PRINTING BY DYE DIFFUSION THERMAL TRANSFER PRI...
- Publication number 20210206187
- Publication date Jul 8, 2021
- Evonik Operations GmbH
- Huifeng Yu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...