BING-KWAN CHENG

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing paper straw
- Patent number 11,338,539
- Issue date May 24, 2022
- HOU JING SHENG JINGHUA CO., LTD.
- Hao-I Tsai
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD

Patents Applicationslast 30 patents

Information Patent Application
PAPER MATERIAL AND PAPER STRAW
- Publication number 20210076855
- Publication date Mar 18, 2021
- HOU JING SHENG JINGHUA CO., LTD.
- Hao-I TSAI
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
METHOD FOR MANUFACTURING PAPER STRAW
- Publication number 20210060890
- Publication date Mar 4, 2021
- HOU JING SHENG JINGHUA CO., LTD.
- HAO-I TSAI
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD