Patents by Inventor Han-Sun Hur

Han-Sun Hur 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 separating and purifying .alpha.-linolenic acid from perilla oil
    Patent number: 5672726
    Abstract: Disclosed herein is a method for separating and purifying .alpha.-linolenic acid (ALA) from ALA-containing fatty acid mixtures by using a column chromatography, comprises the steps of:packing a column with silver nitrate(AgNO.sub.3)-impregnated silica gel as a stationary phase;passing the ALA-containing fatty acid mixtures through the column to adsorb the fatty acids to the stationary phase in the form of Ag.sup.+ -complexes;eluting the fatty acids with acetone-hexane mixtures; andcollecting the fractions containing ALA having a purity of more than 95%.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: September 30, 1997
    Assignee: Republic of Korea Represented by Rural Development Administration
    Inventors: Su-Noh Ryu, Jung-Il Lee, Bo-Young Jeong, Han-Sun Hur