Patents by Inventor Ingvar Selmer-Olsen

Ingvar Selmer-Olsen 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).

  • Aqueous preservative
    Patent number: 6753031
    Abstract: The present invention relates to aqueous preservatives, containing ammonium tetraformate or any other combination of formic acid and ammonia, for grass and other agricultural crops, fish and fish products and meat products, having reduced corrosiveness and irritation to skin, comprising 0.5-5 weight % glycerol. Preferably the content of glycerol in the preservative is 0.75-1.5 weight %. The preservative may further contain at least one metal corrosion inhibitor and/or antioxidant.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 22, 2004
    Assignee: Norsk Hydro ASA
    Inventors: Ingvar Selmer-Olsen, Leif Hjørnevik, Freddy Johnsen