Hongzhuan DU

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Patents Grantslast 30 patents

Information Patent Grant
Yarn, apparatus and methods preparing thereof
- Patent number 11,946,171
- Issue date Apr 2, 2024
- TVN Investment Limited
- Hongzhuan Du
- D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING

Patents Applicationslast 30 patents

Information Patent Application
YARN, APPARATUS AND METHODS PREPARING THEREOF
- Publication number 20220282406
- Publication date Sep 8, 2022
- TVN Investment Limited
- Hongzhuan DU
- D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING
Information Patent Application
YARN, APPARATUS AND METHODS PREPARING THEREOF
- Publication number 20200165752
- Publication date May 28, 2020
- TVN Investment Limited
- Hongzhuan DU
- D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING