Patents by Inventor Witold Surewicz

Witold Surewicz 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).

  • Parathyroid hormone analogues for the treatment of osteoporosis
    Patent number: 5556940
    Abstract: Certain analogues of human parathyroid hormone (hPTH) have been found to be effective for the treatment of osteoporosis, while showing decreased side effects. Analogues showing this effect include all sequences from hPTH-(1-28)-NH.sub.2 to hPTH-(1-31)-NH.sub.2 and all sequences from [Leu.sup.27 ]-hPTH-(1-28)-NH.sub.2 to [Leu.sup.27 ]-hPTH-(1-33)-NH.sub.2. Also included are cyclic analogues cyclo(Lys.sup.26 -Asp.sup.30) [Leu.sup.27 ]-hPTH-(1-34)NH.sub.2 and cyclo (Lys.sup.27 -Asp.sup.30 )-hPTH-(1-34)-NH.sub.2. Analogues in the form of the carboxyl terminal amide are particularly effective.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: September 17, 1996
    Assignee: National Research Council of Canada
    Inventors: Gordon E. Willick, James F. Whitfield, Witold Surewicz, Wing L. Sung, Witold Neugebauer