Patents by Inventor Phillip Spraker

Phillip Spraker 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).

  • Method for sample preparation by solid phase extraction
    Patent number: 7666686
    Abstract: An method for sample preparation using solid phase extraction. Using an apparatus comprising a SPE cartridge and a sorbent-containing gas filter which contains a sorbent and is detachably connected to the SPE cartridge the gas used to dry the SPE cartridge is purified by passage through the gas filter, thereby preventing contamination of the SPE sorbent by airborne contaminants.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: February 23, 2010
    Assignee: United Chemical Technologies, Inc.
    Inventors: Donald L. Shelly, Jr., Phillip Spraker, William L. Ozanich, Jr., Michael J. Telepchak
  • Method for sample preparation by solid phase extraction
    Publication number: 20070264724
    Abstract: An method for sample preparation using solid phase extraction. Using an apparatus comprising a SPE cartridge and a sorbent-containing gas filter which contains a sorbent and is detachably connected to the SPE cartridge the gas used to dry the SPE cartridge is purified by passage through the gas filter, thereby preventing contamination of the SPE sorbent by airborne contaminants.
    Type: Application
    Filed: May 15, 2006
    Publication date: November 15, 2007
    Inventors: Donald Shelly, Phillip Spraker, William Ozanich, Michael Telepchak