Method for screening substances having iga induction potential and bacterial strains of genus bifidobacterium
CA 2014826 C · Owner: Yasui, Hisako · Inventors: Kan, Tatsuhiko; Yasui, Hisako; Hayakawa, Kazuhito
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is to provide an easy rapid method for screening a great, amount of substances having IgA induction potential. The IgA induction potential herein mentioned means the potential to activate and enhance the activity of IgA production cells to produce secretory-type IgA in response to antigen. The present invention is to provide bacterial strains of genus Bifidobacterium obtained by the method for screening substances having IgA induction potential. More specifically, the present invention is to provide Bifidobacterium longum YIT 4062 Bifidobacterium breve YIT 4063 and Bifidobacterium breve YIT 4064. The three strains obtained by the present invention have high IgA …
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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 April 18, 1990 and granted June 15, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.