Patents by Inventor Geza Wack

Geza Wack 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).

  • Method for controlling the amount and distribution of alkaloids formed in a fermentation process
    Patent number: 4390625
    Abstract: The invention relates to a new method for controlling the level and distribution of alkaloids produced by Claviceps purpurea variant strains capable of producing primarily ergocornine, .alpha.-ergocryptine and .beta.-ergocryptine under saprophytic conditions. According to the invention a compound of the biosynthesis path of isoleucine or a compound which promotes the formation of isoleucine by biochemical control is added to the fermentation broth. In other respects fermentation is performed under conditions known per se.By the method of the invention the ratio of .alpha.- and .beta.-ergocryptine formed in the fermentation broth can be adjusted to the optimum value.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: June 28, 1983
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Eva Udvardy Nagy nee Cserey Pechany, Miklos Budai, Gyorgy Fekete, Sandor Gorog, Bulcsu Herenyi, Geza Wack, Karoly Zalai
  • Fermentation process for the preparation of ergot alkaloids, primarily ergocornine and .beta.-ergocryptine
    Patent number: 4369252
    Abstract: The invention relates to a new process for the preparation of ergot alkaloids, primarily ergocornine and .beta.-ergocryptine, by subjecting a Claviceps purpurea strain to fermentation under aerobic conditions in a culture medium which contains carbon and nitrogen sources, mineral salts and optionally other additives, too. According to the invention a Claviceps purpurea variant strain deposited under No. MNG 00186 is applied as alkaloid-producing strain.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: January 18, 1983
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Geza Wack, Janos Kiss, Zsuzsa Lengyel nee Szemenyei, Lajos Nagy, Eva Udvardy Nagy nee Cserey Pechany, Karoly Zalai, Erzsebet Zsoka nee Somkuti