Patents by Inventor Klaus Braeumer

Klaus Braeumer 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 making water-soluble hydrolyzates of keratinaceous materials
    Patent number: 4232123
    Abstract: A method is disclosed for making a water-soluble hydrolyzate of a keratinaceous starting material which comprises first subjecting said starting material to acid treatment at a pH of 2 or below and at an elevated temperature above 80.degree. C. to effect mild hydrolysis thereof and then enzymatically degrading said acid-treated material in an aqueous bath in the presence of urea with an alkaline proteinase having an activity optimum in a range between pH 9 and pH 13, the initial pH of the enzymatic treatment being within the pH range optimum for the enzyme employed.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: November 4, 1980
    Assignees: Firma Carl Freudenberg, R/hm GmbH
    Inventors: Klaus Braeumer, Zdenek Eckmayer, Alexander Berg, Rolf Monsheimer, Ernst Pfleiderer
  • Method for making water-soluble elastin hydrolyzates
    Patent number: 4179333
    Abstract: A water-soluble hydrolyzate of elastin, suitable for cosmetological use, is disclosed as is a method for making a water-soluble elastin hydrolyzate from starting materials containing elastin which comprises first subjecting said starting material to acid treatment at a pH below about 4 and at an elevated temperature and then enzymatically degrading the acid-treated material, while in comminuted form, in an aqueous bath in the presence of urea, with an alkaline proteinase having an activity optimum in a range between pH 9 and pH 13, the initial pH of the enzymatic treatment being within the pH range optimum for the enzyme employed.
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: December 18, 1979
    Assignees: Firma Carl Freudenberg, Rohm GmbH
    Inventors: Klaus Braeumer, Zdenek Eckmayer, Alexander Berg, Rolf Monsheimer, Ernst Pfleiderer