Methods and compositions for increasing the benefits of rhizobium inoculation to legume crop productivity
CA 2178601 C · Owner: Philom Bios Inc. · Inventors: Olsen, Perry Edward; Rice, Wendell Alfred; Gleddie, Sanford Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides methods and compositions for increasing the availability of soluble phosphate and fixed nitrogen for legume: Rhizobium symbioses involving co-inoculating legume seeds with a phosphate-solubilizing soil fungus Penicillium bilaii, and Rhizobium, spp. prior to planting. The two types of microorganisms do not appear to compete for nutrients in the rhizosphere of legumes and the P. bilaii provides a source of available phosphorus for use by the plant without adversely affecting the nitrogen fixation ability of the Rhizobium spp.; and indeed such ability is enhanced. The invention is used to increase the efficiencies of nodulation nitrogen fixation and, legume crop …
Read the whole patent
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 28, 1994 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 28, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.