GENEVA, April 14 -- TONGWEI SOLAR (CHENGDU) CO., LTD. (Section 1, Zongbaoheng Road, Shuangliu Park, Chengdu High-tech Comprehensive Bonded ZoneChengdu, Sichuan 610299), 通威太阳能（成都）有限公司 (中国四川省成都市高新综合保税区双流园区综保横路一段) filed a patent application (PCT/CN2024/115844) for "PREPARATION METHOD FOR PEROVSKITE THIN FILM, THIN FILM, PEROVSKITE CELL, AND STACKED CELL" on Aug 30, 2024. With publication no. WO/2025/073220, the details related to the patent application was published on Apr 10, 2025....