Patents by Inventor Chiew Wei Puah

Chiew Wei Puah 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).

  • Patent number: 8003144
    Abstract: The invention relates to vegetable oil products, including palm oil products, containing one or more constituents from a group which includes monoacylglycerols, diacylglycerols, triacylglycerols, carotenes, tocols, phytosterols, squalene and free fatty acids, from vegetable oil sources and a process for the production thereof by using supercritical fluid extraction.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: August 23, 2011
    Assignee: Malaysian Palm Oil Board
    Inventors: Yuen May Choo, Ah Ngan Ma, Yusof Basiron, Chiew Wei Puah
  • Patent number: 7531678
    Abstract: The present invention relates to a method for production of two types of edible oils, an oil type with high diacylglycerol content (DAG oil) containing at least 8 wt % diacylglycerol and another oil type with low diacylglycerol content (TAG oil) containing less than 8 wt % diacylglycerol, from a vegetable oil. The method comprises subjecting a vegetable oil to at least one stage of short-path distillation under vacuum level of not more than 0.01 Torr and at temperature of not more than 300° C., wherein DAG oil is obtained as distillate and whereas TAG oil is obtained as residue.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: May 12, 2009
    Assignee: Malaysian Palm Oil Board
    Inventors: Yuen May Choo, Chiew Wei Puah, Ah Ngan Ma, Yusof Basiron
  • Patent number: 7141712
    Abstract: A process for the recovery of phytonutrients such as carotenes, phospholipids and ubiquinones from palm oil esters is disclosed. This process comprises the steps of vacuum distillation, treatment and purification of concentrate containing these phytonutrients. The alkyl esters is subjected to at least one stage vacuum distillation at temperature from 80° C. to 220° C. and pressure less than 40 mTorr. The carotenes concentrate is subjected to various physical and chemical treatments to yield higher carotenes concentration enriched with ubiquinones in indigenous diacylglycerols.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: November 28, 2006
    Assignee: Malaysian Palm Oil Board
    Inventors: Yuen May Choo, Harrison Lik Nang Lau, Chiew Wei Puah, Ah Ngan Ma, Yusof Basiron