Patents by Inventor David M. Workinger

David M. Workinger 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).

  • Patent number: 5338617
    Abstract: A method for insulating metal powder particles comprises steps of placing the metal powder particles in a mixing container and adding a monomer in solution to the metal powder particles to form a mixture. The mixture is then stirred to provide an even consistency and is baked to remove solvents. The mixture is then stirred and the monomer is polymerized by exposing the monomer coated carbonyl iron particles to moist gas. The mixture is then ground to form a powder. The powder is suitable for incorporation into plastic resins for subsequent casting to form radio frequency shields having high DC resistance.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: August 16, 1994
    Assignee: Motorola, Inc.
    Inventors: David M. Workinger, Robert D. Fraser
  • Patent number: 4736850
    Abstract: A cell harvesting kit and a method for harvesting cells from a vein of a patient are provided. The cell harvesting kit has a packaging container containing three trays, a support holding the components needed for cell harvesting, and three vials containing enzyme solutions and salt solution, respectively. The three trays include an outer tray having a lid engaged with the outer tray to preserve sterility, a component tray within the outer tray, the component tray having a sealed lid and having a shelf about its perimeter for supporting a support member having depressions therein for holding the components needed in cell harvesting, and a third tray contained within the component tray, the third tray comprising a process tray with a trough in which an excised vein may be placed for harvesting.A method for harvesting cells from a vein of a patient is also provided.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: April 12, 1988
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Phillip B. Bowman, David M. Workinger, John L. Fisher