Patents by Inventor Heidrun Bertram

Heidrun Bertram 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).

  • Fodder for cows
    Patent number: 4073945
    Abstract: The calcium salts of mono-hydroxymethyl lysine and bis(hydroxymethyl) lysine are prepared by reacting lysine and formaldehyde in water containing calcium ions at a pH of at least 8 and at most 12.5. The compounds are useful as fodder for ruminants.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: February 14, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Heidrun Bertram, Rudolf Fahnenstich, Heribert Offermanns, Herbert Tanner
  • Food and fodder additive
    Patent number: 4056658
    Abstract: DL-methionyl-DL-methionine is prepared and used as a food and fodder additive.
    Type: Grant
    Filed: October 19, 1973
    Date of Patent: November 1, 1977
    Assignee: Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler
    Inventors: Heidrun Bertram, Rudolf Fahnestich, Joachim Hesse
  • Feed additive for ruminants
    Patent number: 4044169
    Abstract: N-hydroxymethyl methionine is incorporated in feeds for ruminants.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: August 23, 1977
    Assignee: Duetsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Heidrun Bertram, Rudolf Fahnenstich, Herbert Tanner
  • Preservative for fodder, mixed fodder and silage
    Patent number: 4042716
    Abstract: Fodder, mixed fodder and silage are preserved with acrylic acid, methacrylic acid or esters or salts of such acids.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: August 16, 1977
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Heidrun Bertram, Rudolf Fahnenstich, Helmut Junkermann, Gerhard Pohl, Herbert Tanner
  • Feed additive for ruminants
    Patent number: 3968253
    Abstract: N-hydroxymethyl methionine is incorporated in feeds for ruminants.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: July 6, 1976
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Heidrun Bertram, Rudolf Fahnenstich, Herbert Tanner