Patents by Inventor Henry S. McKown

Henry S. McKown 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).

  • Ion source for high-precision mass spectrometry
    Patent number: 4459481
    Abstract: The invention is directed to a method for increasing the precision of positive-ion relative abundance measurements conducted in a sector mass spectrometer having an ion source for directing a beam of positive ions onto a collimating slit. The method comprises incorporating in the source an electrostatic lens assembly for providing a positive-ion beam of circular cross section for collimation by the slit.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: July 10, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Peter J. Todd, Henry S. McKown, David H. Smith