Patents by Inventor Sok L. Khor

Sok L. Khor 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).

  • Pressurized product delivery systems
    Patent number: 5510116
    Abstract: An apparatus for dispensing pressurized material is comprised of a container, a polymeric matrix having a network of macropores located within the container, and a propellant that may be reversibly sorbed with the network of macropores so as to desorb as the partial pressure of the propellant within the container decreases. The network of pores is substantially non-swellable upon sorption and desorption of the propellant during filling and use of the dispensing apparatus. The polymeric matrix may comprise aggregates of macroporous polymeric particles in which the particles define a substantially non-collapsible pore network and the aggregates define interstitial spaces between the particles, and the interstitial spaces are substantially larger than the pore network.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: April 23, 1996
    Assignee: Advanced Polymer Systems, Inc.
    Inventors: Michael Froix, Larry Shipley, Christine J. Y. Liau, Hien Nguyen, Sok L. Khor
  • Pressurized product delivery systems
    Patent number: 5256400
    Abstract: An apparatus for dispensing pressurized material is comprised of a container, a polymeric matrix having a network of macropores located within the container, and a propellant that may be reversibly sorbed with the network of macropores so as to desorb as the partial pressure of the propellant within the container decreases. The network of pores is substantially non-swellable upon sorption and desorption of the propellant during filling and use of the dispensing apparatus. The polymeric matrix may comprise aggregates of macroporous polymeric particles in which the particles define a substantially non-collapsible pore network and the aggregates define interstitial spaces between the particles, and the interstitial spaces are substantially larger than the pore network.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: October 26, 1993
    Assignee: Advanced Polymer Systems, Inc.
    Inventors: Michael Froix, Larry Shipley, Christine J. Y. Liau, Hien Nguyen, Sok L. Khor