Patents by Inventor Sang Weon Roh

Sang Weon Roh 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).

  • Method for Preparing Cyclic Sulfonic Acid Ester Derivative Compound
    Publication number: 20240300915
    Abstract: A manufacturing method capable of improving the yield and properties of a cyclic sulfonic acid ester derivative compound includes (A) reacting a compound represented by Formula 1 and thioacetic acid to prepare a compound represented by Formula 2, and (B) subjecting the compound represented by Formula 2 to an oxidative cyclization reaction to prepare a compound represented by Formula 3: wherein m and R1 to R8 are described herein.
    Type: Application
    Filed: January 9, 2023
    Publication date: September 12, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Sang Weon Roh, Byung Soo Kang, Min Su Hwang, Jeong Ae Yoon, Won Jae Lee, Su Jeong Kim