INTERNATIONAL PATENT: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY, 长飞光纤光缆股份有限公司 FILES APPLICATION FOR "HOLLOW-CORE MICROSTRUCTURED FIBER WITH REFRACTIVE INDEX MARKS, PREPARATION METHOD THEREFOR AND DETECTION METHOD"

GENEVA, April 28 -- YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY (No. 9 Optics Valley Avenue, East Lake High-tech Development ZoneWuhan, Hubei 430074), 长飞光纤光缆股份有限公司 (中国湖北省武汉市东湖新技术开发区光谷大道九号) filed a patent application (PCT/CN2024/120316) for "HOLLOW-CORE MICROSTRUCTURED FIBER WITH REFRACTIVE INDEX MARKS, PREPARATION METHOD THEREFOR AND DETECTION METHOD" on Sep 23, 2024. With publication no. WO/2025/082139, the details related to the patent application was published on Apr 24, 2025.

Notably, t...