Patents by Inventor Richard H. Rodrian

Richard H. Rodrian 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).

  • Metallic iron particles for magnetic recording
    Patent number: 4256484
    Abstract: In the process for preparing a magnetically stable, powder comprising the steps of reducing an iron oxide or iron oxide hydrate with a gaseous reduction agent and stabilizing the metallic powder thus produced, the improvement which comprises enhancing its reduction by coating said iron oxide or iron oxide hydrate with an antimony compound at a level of up to about 7 weight percent antimony based on the weight of the iron oxide prior to said reduction.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: March 17, 1981
    Assignee: Pfizer Inc.
    Inventor: Richard H. Rodrian