Core Viewpoint - Rainbow Co., Ltd. has filed an international patent application for an automatic advancing device and method for tin oxide electrodes in electronic glass kilns, with the application number PCT/CN2025/111262 and an international publication date set for February 5, 2026 [1] Group 1: Patent Information - The patent application is part of Rainbow Co., Ltd.'s ongoing innovation efforts, with a total of two international patent applications filed this year [1] - The details of the patent were sourced from the World Intellectual Property Organization (WIPO) [1] Group 2: Financial Data - In the first half of 2025, Rainbow Co., Ltd. invested 209 million yuan in research and development, representing a year-on-year decrease of 4.11% [1]