GENEVA, July 19 -- DAYE SPECIAL STEEL CO., LTD. (No. 316 Huangshi AvenueHuangshi, Hubei 435001), 大冶特殊钢有限公司 (中国湖北省黄石市黄石大道316号) filed a patent application (PCT/CN2025/078332) for "9CR STAINLESS STEEL QUENCHED AND TEMPERED MATERIAL FOR OIL GAS, AND MANUFACTURING METHOD THEREFOR AND USE THEREOF" on Feb 20, 2025. With publication no. WO/2025/149093, the details related to the patent application was published on Jul 17, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization ...