Patents by Inventor Gunnar Rørstad

Gunnar Rørstad 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).

  • Bioactive peptides, uses thereof and process for the production of same
    Patent number: 6376650
    Abstract: Novel bioactive peptide compositions and process for producing the same and the use of such compositions for enhancing the growth of warm blooded animals and fish is disclosed.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 23, 2002
    Assignee: Biotec ASA
    Inventors: Jan Raa, Gunnar Rorstad
  • Bioactive peptides, uses thereof and process for the production of same
    Publication number: 20010036915
    Abstract: Novel bioactive peptide compositions and process for producing the same and the use of such compositions for enhancing the growth of warm blooded animals and fish is disclosed.
    Type: Application
    Filed: May 14, 2001
    Publication date: November 1, 2001
    Inventors: Jan Raa, Gunnar Rorstad
  • Process for enhancing the resistance of aquatic animals to disease
    Patent number: 5401727
    Abstract: The present invention provides a process for stimulating the immune system of aquatic animals of the class Osteichthyes and subphylum Crustacea comprising administering an effective amount of a yeast cell wall glucan composed of glucopyranose units linked by predominately beta-1,3 glycosidic bonds, having at least one branch therefrom of glucopyranose units linked by beta-1,6 glycosidic bonds. Additionally the invention provides a process for enhancing the effect of vaccines by administering an effective amount of the described yeast cell wall glucan along with vaccine antigens. Further this invention also provides a process for obtaining a glucan particularly effective for stimulating the immune system of aquatic animals of the class Osteichthyes and subphylum Crustacea.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: March 28, 1995
    Assignee: AS Biotech-Mackzymal
    Inventors: Gunnar Rorstad, Borre Robertson, Jan Raa