Patents by Inventor Emil Bittner

Emil Bittner 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).

  • N-Formyl leurosine derivatives in a dosage form effective for treating lymphoid leukemia
    Patent number: 4279816
    Abstract: New leurosine derivatives of the general formula (1), ##STR1## wherein R stands for hydrogen or formyl, or pharmaceutically acceptable acid addition salts thereof were prepared by oxidizing leurosine or an acid addition salt thereof, optionally formylating the thus-obtained product and then separating, and, if desired, converting any of the free bases into its acid addition salt.
    Type: Grant
    Filed: February 5, 1975
    Date of Patent: July 21, 1981
    Assignee: Richter Gedeon Vegyszeti Gyar Rt.
    Inventors: Karola Jovanovics, Kalman Szasz, Bela Kellner, Laszlo Nemeth, Zsuzsa Relle, Emil Bittner, Eszter Dezseri, Janos Eles
  • Method of treatment using new leurosine derivatives
    Patent number: 4279916
    Abstract: Multiple myeloma in human patients is treated by administering N-formylleurosine or its sulfate salt.
    Type: Grant
    Filed: September 20, 1977
    Date of Patent: July 21, 1981
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Karola Jovanovics, Kalman Szasz, Bela Kellner, Laszlo Nemeth, Zsuzsa Relle, Emil Bittner, Eszter Deszeri, Janos Eles
  • Method of treatment using new leurosine derivatives
    Patent number: 4279915
    Abstract: N-formylleurosine or a pharmaceutically effective salt is used in human therapy for treatment of lymphoma, leukemia or Hodgkins Disease.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: July 21, 1981
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Karola Jovanovics, Kalman Szasz, Bela Kellner, Laszlo Nemeth, Zsuzsa Relle, Emil Bittner, Eszter Deszeri, Janos Eles
  • N-formyl and N-desmethyl leurosine derivatives
    Patent number: 4189432
    Abstract: Leurosine derivatives of the formula (I), ##STR1## wherein R is hydrogen or formyl, or pharmaceutically acceptable acid addition salts thereof were prepared by oxidizing leurosine or an acid addition salt thereof, optionally formylating the thus-obtained product and then separating, and, if desired, converting any of the free bases into its acid addition salt. The new compounds of the invention possess strong cytostatic activity, and can be used in the human therapy with great advantage.
    Type: Grant
    Filed: December 5, 1973
    Date of Patent: February 19, 1980
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Karola Jovanovics, Kalman Szasz, Bela Kellner, Laszlo Nemeth, Zsuzsa Relle, Emil Bittner, Eszter Dezseri, Janos Eles