Patents by Inventor Nikola Russev Gospodinov

Nikola Russev Gospodinov 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 of producing microcrystalline cellulose
    Patent number: 3954727
    Abstract: Method of producing microcrystalline cellulose. Cellulose containing at least about 92% alpha-cellulose and 5 - 6.5% beta cellulose, having a solubility in 5% sodium hydroxide of about 2 to 4% and a viscosity 110 to 180 mP is acid hydrolyzed and the resulting crystalline mass is de-aggregated, the acid hydrolysis being performed at the same time as the chemical de-aggregating of the material. The de-aggregated material may be bleached and cleaned if desired.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: May 4, 1976
    Assignee: DSO"Pharmachim"
    Inventors: Toshko Sokolov Toshkov, Nikola Russev Gospodinov, Evstati Penchev Vidimski