Patents by Inventor Seong-Neon Kim

Seong-Neon Kim 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).

  • Preparing method of methoxypolyethyleneglycol and its derivatives
    Patent number: 7781563
    Abstract: The present invention relates to a preparing method of methoxypolyethyleneglycol (mPEG) with high purity and derivatives thereof. More precisely, the method of the present invention to prepare high purity mPEG with at least 99% of purity, up to 1.05 of molecular weight distribution and 350˜100,000 of molecular weight includes the process of reacting commercial mPEG having low purity to give highly purified intermediates, mPEG-acetic acid of formula 1 and mPEG-phthalate of formula 2.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: August 24, 2010
    Assignee: ID Biochem, Inc.
    Inventors: Pyeong-Uk Park, Seong-Neon Kim, Chong-Gu Lee, Ju-Sung Lee
  • Preparing Method Of Methoxypolyethyleneglycol And Its Derivatives
    Publication number: 20080090991
    Abstract: The present invention relates to a preparing method of methoxypolyethyleneglycol (mPEG) with high purity and derivatives thereof. More precisely, the method of the present invention to prepare high purity mPEG with at least 99% of purity, up to 1.05 of molecular weight distribution and 350˜100,000 of molecular weight includes the process of reacting commercial mPEG having low purity to give highly purified intermediates, mPEG-acetic acid of formula 1 and mPEG-phthalate of formula 2.
    Type: Application
    Filed: August 3, 2006
    Publication date: April 17, 2008
    Applicant: ID BIOCHEM INC.
    Inventors: Pyeong-Uk Park, Seong-Neon Kim, Chong-Gu Lee, Ju-Sung Lee