Patents by Inventor Hans Jørgen Singel Christensen

Hans Jørgen Singel Christensen 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).

  • Thermostable isomerase and use hereof, in particular for producing tagatose
    Patent number: 7052898
    Abstract: A novel L-arabinose isomerase active enzyme and its corresponding gene, derived from a thermophilic source are provided. The enzyme is suitable for the production of D-tagatose, a useful low-calorie sweetener. The enzyme may be obtained from a Thermoanaerobacter species such as Thermoanaerobacter mathranii.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: May 30, 2006
    Assignee: Bioneer A/S
    Inventors: Ole C. Hansen, Flemming Jørgensen, Peter Stougaard, Hans Bertelsen, Karen Bøttcher, Hans Jørgen Singel Christensen, Kristian Eriknauer
  • Process for manufacturing of tagatose
    Patent number: 6991923
    Abstract: Tagatose is manufactured by hydrolyzing lactose to galactose and glucose and isomerizing galactose to tagatose and chromatographic separation and recycling any unconverted compounds. Thereby high yields of pure tagatose are obtained.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: January 31, 2006
    Assignee: Arla Foods Amba
    Inventors: Hans Bertelsen, Kristian Eriknauer, Karen Bøttcher, Hans Jørgen Singel Christensen, Peter Stougaard, Ole Cai Hansen, Flemming Jørgensen