Patents by Inventor Frank Cathel

Frank Cathel 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).

  • Electrophoresis system
    Patent number: 5342497
    Abstract: The invention provides an electrophoresis system which separates charged chemical substances by means of applying an electrical potential across a buffer solution which includes those chemical substances. The system of the invention includes a power supply and control system which has a wide dynamic range of constant voltage, current and power which may be supplied, and is therefore particularly suited to the needs of the electrophoresis system. In the invention, the power supply includes a flyback topology and a control system which allows an operator to specify a wide range of constant voltage, current or power supply requirements for the electrophoresis system.
    Type: Grant
    Filed: April 8, 1991
    Date of Patent: August 30, 1994
    Assignee: Stratagene Cloning Systems
    Inventors: Frank Cathel, Robert Leshofs
  • Electrophoresis control system with wide dynamic range
    Patent number: 5055172
    Abstract: The invention provides an electrophoresis system which separates charged chemical substances by means of applying an electrical potential across a buffer solution which includes those chemical substances. The system of the invention includes a power supply and control system which has a wide dynamic range of constant voltage, current and power which may be supplied, and is therefore particularly suited to the needs of the electrophoresis system. In the invention, the power supply includes a flyback topology and a control system which allows an operator to specify a wide range of constant voltage, current or power supply requirements for the electrophoresis system.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: October 8, 1991
    Assignee: Stratagene Cloning Systems
    Inventors: Frank Cathel, Robert Leshofs