Patents by Inventor Ronald Gundlach

Ronald Gundlach 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).

  • Automated liquid handling and computer controlled system and method for solid phase chromatographic extractions
    Patent number: 5760299
    Abstract: A method and apparatus for solid phase extraction chromatography is disclosed in which the flow rate of a fluid, such as the motive pressurized gas is monitored, adjusted and compared with a standardized pressure curve which is correlative of a sample being processed. By monitoring and adjusting changes in flow rate, which can correspond to process initialization, beginning, ending and key fractionating points, and correlating to a standard, the cycle time for assaying the sample in question can be maximized and multiple samples can pass through analysis automatically and quickly.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: June 2, 1998
    Assignee: Hamilton Company
    Inventors: James E. Johnson, Christopher B. Shumate, Andy W. Siu, Ronald Gundlach
  • Automated liquid handling and computer controlled system and method for solid phase chromatographic extractions
    Patent number: 5531959
    Abstract: A method and apparatus for solid phase extraction chromatography is disclosed in which the flow rate of a fluid, such as the motive pressurized gas is monitored, adjusted and compared with a standardized pressure curve which is correlative of a sample being processed. By monitoring and adjusting changes in flow rate, which can correspond to process initialization, beginning, ending and key fractionating points, and correlating to a standard, the cycle time for assaying the sample in question can be maximized and multiple samples can pass through analysis automatically and quickly.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: July 2, 1996
    Assignee: Hamilton Company
    Inventors: James E. Johnson, Christopher B. Shumate, Andy W. Siu, Ronald Gundlach