Patents by Inventor Hamdan Halimaton

Hamdan Halimaton 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).

  • Silica aerogels
    Patent number: 7897648
    Abstract: This invention relates to silica aerogels and to a method for their preparation from rice husk. Rice husk is very rich in silica, and its ash can contain up to 92-97% of amorphous silica. The rice husk ash is prepared by burning the rice husk on a heating plate with excess air until the white ash is obtained. Silica from rice ash husk is in a very active form and has been found to be a very potential starting material for silica aerogels.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: March 1, 2011
    Assignee: Universiti Teknologi Malaysia
    Inventor: Hamdan Halimaton
  • Silica Aerogels
    Publication number: 20070276051
    Abstract: This invention relates to silica aerogels and to a method for their preparation from rice husk. Rice husk is very rich in silica, and its ash can contain up to 92-97% of amorphous silica. The rice husk ash is prepared by burning the rice husk on a heating plate with excess air until the white ash is obtained. Silica from rice ash husk is in a very active form and has been found to be a very potential starting material for silica aerogels.
    Type: Application
    Filed: November 1, 2004
    Publication date: November 29, 2007
    Inventor: Hamdan Halimaton