Patents by Inventor Kevin Gan

Kevin Gan 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: 6071410
    Abstract: The present invention provides in one aspect, a novel method for recovering an organic solute from a predominantly aqueous solution. In one embodiment, the solution is contacted with a dry, non-conditioned sorbent medium held by a supporting structure, whereby the solute is absorbed onto the matrix by hydrophobic interactions. A solvent is then passed through the medium, thereby desorbing the solute. Finally, the solute is collected. A further aspect of the invention provides water-wettable sorbent materials for use in solid phase extractions. Embodiments of polymer-based and silica-based sorbent materials are disclosed.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: June 6, 2000
    Assignee: Varian, Inc.
    Inventors: David R. Nau, Kevin Gan, Barry C. Arkles, Guicheng Sheng, Hong Zhou