Patents by Inventor Betty Jorgensen

Betty Jorgensen 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).

  • Meniscus membranes for separations
    Patent number: 6946019
    Abstract: Gas separation membranes, especially meniscus-shaped membranes for gas separations are disclosed together with the use of such meniscus-shaped membranes for applications such as thermal gas valves, pre-concentration of a gas stream, and selective pre-screening of a gas stream. In addition, a rapid screening system for simultaneously screening polymer materials for effectiveness in gas separation is provided.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: September 20, 2005
    Assignee: The Regents of the University of California
    Inventors: Robert C. Dye, Betty Jorgensen, David R. Pesiri
  • Preparation of tungsten oxide
    Publication number: 20050025700
    Abstract: Tungsten trioxide hydrate (WO3.H20) was prepared from a precursor solution of ammonium paratungstate in concentrated aqueous hydrochloric acid. The precursor solution was rapidly added to water, resulting in the crash precipitation of a yellow white powder identified as WO3.H20 nanosized platelets by x-ray diffraction and scanning electron microscopy. Annealing of the powder at 200° C. provided cubic phase WO3 nanopowder, and at 400° C. provided WO3 nanopowder as a mixture of monoclinic and orthorhombic phases.
    Type: Application
    Filed: July 28, 2003
    Publication date: February 3, 2005
    Inventors: Christopher Bulian, Robert Dye, Steven Son, Betty Jorgensen, W. Perry
  • Meniscus membranes for separations
    Patent number: 6681648
    Abstract: Gas separation membranes, especially meniscus-shaped membranes for gas separations are disclosed together with the use of such meniscus-shaped membranes for applications such as thermal gas valves, pre-concentration of a gas stream, and selective pre-screening of a gas stream. In addition, a rapid screening system for simultaneously screening polymer materials for effectiveness in gas separation is provided.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: January 27, 2004
    Assignee: The Regents of the University of California
    Inventors: Robert C. Dye, Betty Jorgensen, David R. Pesiri