Patents by Inventor Felix J. Piasecki

Felix J. Piasecki 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).

  • Patent number: 3944426
    Abstract: In sintering calcium aluminate raw mixes for use in calcium aluminate cements from 0.5 to 4.0% by weight of SO.sub.3 is added to the mix in the form of CaSO.sub.4 to broaden the sintering range.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: March 16, 1976
    Assignee: United States Steel Corporation
    Inventors: Hubert O. Nickelsen, Joseph E. Kopanda, Felix J. Piasecki