Dun'an Environment Announces International Patent Application: "One-Way Valve and Valve Assembly Device"

NightAirdropper · 2026-03-21T04:35:14+00:00

Dun'an Environment (002011) has applied for an international patent for "Check Valve and Valve Assembly Device" with application number PCT/CN2025/116156 and publication date of March 19, 2026. In 2023, Dun'an Environment had applied for 26 international patents, with R&D investment increasing 13.37% year-over-year.

NightAirdropper

2026-03-21 04:35:14

Abstract generation in progress

Securities Star News, according to Qichacha data, Shuang’an Environment (002011) has announced an international patent application titled “One-way Valve and Valve Assembly,” with patent application number PCT/CN2025/116156. The international publication date is March 19, 2026.

Details of the patent are as follows:

Image source: World Intellectual Property Organization (WIPO)

Since the beginning of this year, Shuang’an Environment has published 26 international patent applications, an increase of 136.36% compared to the same period last year. Based on the company’s 2025 mid-year financial report, the company invested 245 million yuan in R&D in the first half of 2025, a year-on-year increase of 13.37%.

Data source: Qichacha

The above content is compiled from publicly available information by Securities Star, generated by AI algorithms (Wenxin Calculation Backup No. 310104345710301240019), and does not constitute investment advice.

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