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Expired Canadian patentCanada

Inhibitor of helicobacter pylori colonization

CA 2292012 C · Owner: Nisshin Seifun Group Inc. · Inventors: Kimura, Nobutake; Kodama, Yoshikatsu

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention provides a safe and effective inhibitor of Helicobacter pylori colonization in the stomach and a food containing the inhibitor. The inhibitor of the present invention comprises as an active ingredient a mucin especially a mucin from milk of a cow or a mucin from albumen of an egg and is useful for the prevention or treatment of diseases caused by infection of Helicobacter pylori such as peptic ulcers.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 9, 1999 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 9, 1999
GrantedJuly 9, 2002
Term endedDecember 9, 2019
Patent numberCA 2292012 C
Classification (IPC)C07K14/47 +2 more

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.