Patents by Inventor Yonghui LV

Yonghui LV has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Crystal Form Of Thiofuran Pyridazine Compound, Preparation Method Therefor And Application Thereof
    Publication number: 20230183259
    Abstract: The present invention provides a crystal form of a thiofuran pyridazine compound, a preparation method therefor and an application thereof. The crystal form of the thiofuran pyridazine compound is (S)-2-(4-fluorophenyl)-4-(piperidine-3-aminomethyl)thieno[2,3-d] pyridazine-7-carboxamide hydrochloride of formula (I). The crystal form of the thiofuran pyridazine compound in the present invention has higher stability and is stored especially in high humidity conditions, and thus is suitable for preparing various forms of drugs.
    Type: Application
    Filed: April 17, 2020
    Publication date: June 15, 2023
    Inventors: Dadong SHEN, Yonghui LV, Guofeng WU, Dingfeng ZHANG, Ruiwei CAO