Patents by Inventor Richard D. Sacks, deceased

Richard D. Sacks, deceased 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).

  • Thermal modulation for gas chromatography
    Patent number: 7293449
    Abstract: A thermal modulator device for gas chromatography and associated methods. The thermal modulator device includes a recirculating fluid cooling member, an electrically conductive capillary in direct thermal contact with the cooling member, and a power supply electrically coupled to the capillary and operable for controlled resistive heating of the capillary. The capillary can include more than one separate thermally modulated sections.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: November 13, 2007
    Assignee: The Regents of the University of Michigan
    Inventors: Ernest F. Hasselbrink, Mark Libardoni, Kristine Stewart, legal representative, J. Hunter Waite, Bruce P. Block, Richard D. Sacks, deceased
  • Thermal modulation for gas chromatography
    Patent number: 7284409
    Abstract: A thermal modulator device for gas chromatography and associated methods. The thermal modulator device includes a cooling member, an electrically conductive capillary in direct thermal contact with the cooling member, and a power supply electrically coupled to the capillary and operable for controlled resistive heating of the capillary.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: October 23, 2007
    Assignee: The Regents of the University of Michigan
    Inventors: Ernest F. Hasselbrink, Mark Libardoni, Kristine Stewart, legal representative, J. Hunter Waite, Bruce P. Block, Richard D. Sacks, deceased