Patents by Inventor Harry D. Schwartz

Harry D. Schwartz 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).

  • Tantalum-columbium-molybdenum-tungsten alloy
    Patent number: 4526749
    Abstract: Disclosed is a novel refractory metal alloy that retains the essential characteristics of pure tantalum and, additionally, has improved engineering characteristics and may be produced at a lower cost than pure tantalum. The alloy nominally contains, by weight, about 58% tantalum, about 2.0% molybdenum, about 2.5% tungsten and about 37.5% columbium.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: July 2, 1985
    Assignee: Cabot Corporation
    Inventors: Louis E. Huber, Jr., Harry D. Schwartz