Patents by Inventor Laszlo Hermann

Laszlo Hermann 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).

  • Process for the preparation of diindole alkaloids or of the acid addition salts thereof
    Patent number: 4070358
    Abstract: A process is disclosed for the separation and recovery of vinblastine and leurosine from a mixture of diindole alkaloids obtained by extraction of the plant, Vinca rosea L.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: January 24, 1978
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Karola Jovanovics, Kalman Szasz, Csaba Lorincz, Laszlo Hermann, Eszter Dezseri