Patents by Inventor Tedd P. Hardman

Tedd P. Hardman 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).

  • Micro-additions to tin alloys
    Patent number: 5019336
    Abstract: Tin-based alloys that include micro-additions of certain elements avoid the discoloration that otherwise afflict those alloys when they are melted. The discoloration, which results from tin oxidation, correlates with poor performance of the alloys in filler metal applications. A preferred method of preparing the alloys of the invention is by rapid solidification from the melt.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: May 28, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Howard H. Liebermann, Tedd P. Hardman