Patents by Inventor Pertti Markkanen

Pertti Markkanen 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).

  • Procedure for producing enzymes
    Patent number: 4062730
    Abstract: The present invention concerns a procedure for the producing of enzymes which hydrolytically decompose proteins and peptides into amino acids and in which procedure the enzymes are produced in a bacterial culture consisting essentially of one or both of two new bacterial strains. In addition the invention concerns enzymes produced in accordance with the said procedure.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: December 13, 1977
    Assignees: Yrjo Malkki, Raimo Mattson, Pertti Markkanen
    Inventors: Yrjo Malkki, Leo Rouhiainen, Raimo Mattsson, Pertti Markkanen