Patents by Inventor Robert Toros

Robert Toros 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 increasing the vitamin B.sub.12 production in fermentation processes carried out with methanobacteria
    Patent number: 3964971
    Abstract: The invention relates to a method for increasing the vitamin B.sub.12 production of fermentation processes performed in a known way with a mixed population of mesophilic methane-producing bacteria under anaerobic conditions. According to the invention in an enrichment period of preferably 4 to 7 days a nutrient concentrate containing mainly inorganic ammonium compounds as nitrogen source and mainly methanol as carbon source and having a N:C weight ratio of 1:10 to 1:20, preferably 1:11 to 1:15 is added in daily portions to a fermentation broth obtained from a usual vitamin B.sub.12 fermentation process and containing living bacterium populations so as to increase the total concentration of assimilable nitrogen by a factor of maximum 4 until the end of the enrichment period, and thereafter the fermentation is terminated and the obtained fermentation broth with an increased vitamin B.sub.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: June 22, 1976
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Bela Johan, Laszlo Szemler, Janos Fulop, Tamas Szontagh, Emilia Simonovits nee Czink, Judit Bekes nee Erdos, Laszlo Kuti, Robert Toros, Denes Szekely, Laszlo Szabo, Karoly Seitz, Tade Vajda, Erzsebet Kovacs nee Komoroczy, Aniko Hargital nee Franyo, Karoly Polinszky