Patents by Inventor Giawen Sim

Giawen Sim 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).

  • Process for making nano-sized and micro-sized precipitate particles
    Patent number: 7985388
    Abstract: There is disclosed a process of making nano-sized or micro-sized precipitate particles. The process comprising the steps of mixing, in a reaction zone, a metal salt solution with a precipitant solution to form a precipitate, said precipitate being at least one of a metal chalcogenide, metal hydroxide and metal oxide; and applying a shear force to said mixing solutions in said reaction zone during said mixing step, wherein said shear force and the conditions within said reaction zone form said nano-sized or micro-sized precipitate particles.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: July 26, 2011
    Assignee: NanoMaterials Technology Pte Ltd
    Inventors: Zhigang Shen, Jiyao Zhang, Giawen Sim, Jimmy Sung Lai Yun, Jianfeng Chen
  • Process For Making Nano-Sized and Micro-Sized Precipitate Particles
    Publication number: 20100028236
    Abstract: There is disclosed a process of making nano-sized or micro-sized precipitate particles. The process comprising the steps of mixing, in a reaction zone, a metal salt solution with a precipitant solution to form a precipitate, said precipitate being at least one of a metal chalcogenide, metal hydroxide and metal oxide; and applying a shear force to said mixing solutions in said reaction zone during said mixing step, wherein said shear force and the conditions within said reaction zone form said nano-sized or micro-sized precipitate particles.
    Type: Application
    Filed: October 2, 2007
    Publication date: February 4, 2010
    Applicant: NANOMATERIALS TECHNOLOGY PTE LTD
    Inventors: Zhigang Shen, Jiyao Zhang, Giawen Sim, Jimmy Sung Lai Yun, Jianfeng Chen