30 generic companies participated in the patent dispute for Yuhan's acute and chronic gastritis treatment "Recomid SR." According to the pharmaceutical industry on the 24th, 20 pharmaceutical companies, including Kyung Dong, recently requested a passive judgment on the scope of rights to Recomid SR's patent. Prior to them, 13 pharmaceutical companies, including Mother's, also challenged the same patent.

However, Dongkwang, Samjin, and Huons, which previously requested a patent trial, voluntarily withdrew. As a result, a total of 30 companies are challenging Recomid SR patents. Mother's are the first companies to file a claim as well as Kyung Dong, Nexpharm, Daewoong Bio, Dahannupharm, Dongkook, Dongwha