Patents by Inventor Alex J. Brankiewicz

Alex J. Brankiewicz 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).

  • CL-1577D And CL-1577E antibiotic/antitumor compounds, their production and use
    Patent number: 4539203
    Abstract: Compounds CL-1577D and CL-1577E are prepared by cultivation of a purified isolate of Actinomycete designated ATCC 39363 in a culture medium having assimilable sources of carbon and nitrogen. The compounds are effective antimicrobial agents and possess cytotoxic activity against L1210 murine leukemia cells and P388 murine leukemia cells.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: September 3, 1985
    Assignee: Warner-Lambert Company
    Inventors: Alex J. Brankiewicz, Richard H. Bunge, James C. French, Gerard C. Hokanson, Timothy R. Hurley, John P. Schaumberg