Patents by Inventor Jeffrey T. Mahar

Jeffrey T. Mahar 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).

  • Gradient generation control for large scale liquid chromatography
    Patent number: 5089124
    Abstract: Precise gradient control is accomplished using a high flow three-way valve, appropriate mixing, and precise metering control. Gradient elution profiles are generated for flow rates above 100 ml/min. Control involves precise selection of two solvents, and correction factors for valve lag times and pump/valve synchronizations. The gradient is controlled simultaneously with other non-timed operations through a single microprocessor controller.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: February 18, 1992
    Assignee: Biotage Inc.
    Inventors: Jeffrey T. Mahar, Thomas C. Ransohoff, Adam H. Levin, Theodore Kettler
  • Ion exchange recovery of L-lysine
    Patent number: 4835309
    Abstract: L-lysine is recovered using an ion exchange resin. A liquid solution containing L-lysine and possibly impurities is contacted with the resin and is then soaked in elutant for at least about 15 minutes. The elution of L-Lysine from the resin is then continued.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: May 30, 1989
    Assignee: Eastman Kodak Company
    Inventors: Mark D. Jaffari, Jeffrey T. Mahar, Richard L. Bachert