Core Insights - Shouyao Holdings (688197) has filed an international patent application for a method of preparing an enzyme inhibitor, with the application number PCT/CN2025/110439 and an international publication date set for January 29, 2026 [1] - The company has announced a total of three international patent applications in 2023 [1] - In the first half of 2025, Shouyao Holdings invested 108 million yuan in research and development, reflecting a year-on-year increase of 1% [1]