Selection and isolation of microfungi for use in biological control of parasitic nematodes in animals
CA 2117198 A1 · Owner: Henriksen, Svend A. · Inventors: Nansen, Peter; Wolstrup, Jens; Gronvold, Jorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a process for the selection and isolation of microfungi for use in biological control of parasitic nematodes in animals compost and soil samples are subjected to a three-step selection procedure consisting of (1) a primary stress selection step in vitro) and and a further selection step in vitro wherein the, fungi surviving the primary stress solution step is tested in pure culture, and (2) a secondary stress selection step in vivo wherein the fungi are selected on the basis of their ability to pass through the living animals. Finally, (3) the stress selected fungi are optionally tested in a field experiment. Preferably the, selected fungus is Duddingtonia flagrans. The selected …
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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 September 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2014.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.