Patents by Inventor Soi Seng Hoong

Soi Seng Hoong 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).

  • Palm-based hydroxy fatty acid
    Patent number: 7560578
    Abstract: The present invention relates to an improved process for producing hydroxy fatty acids preferably dihydroxy or polyhydroxy acids from unsaturated fatty acids derived from natural oils and fats. The unsaturated fatty acids extracted from natural vegetable oils or animal fats preferably palm-based oleic acid is hydroxylated or oxidized by peracetic acid which formed in situ from a mixture of hydrogen peroxide and formic acid. The process for producing dihydroxy or polyhydroxy fatty acids according to the present invention involve less cost, easier to perform and reduced reaction time. In addition, the dihydroxy or polyhydroxy acids produced according to the present invention is non irritant and suitable to be used in production of cosmetic products.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: July 14, 2009
    Assignee: Malaysian Palm Oil Board
    Inventors: Salmiah Ahmad, Soi Seng Hoong, Mohd Norhisham Sattar, Yusrabbil Amiyati Yusof, Hazimah Abu Hassan, Roila Awang