Patents by Inventor Lee D. Trowbridge

Lee D. Trowbridge 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).

  • Process for removing technetium from iron and other metals
    Patent number: 5885326
    Abstract: A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: March 23, 1999
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: James M. Leitnaker, Lee D. Trowbridge