A composition and method for preparing amino acid chelates free of interfering ions
CA 2425473 A1 · Owner: Wheelwright, David C. · Inventors: Ashmead, Stephen D.; Ericson, Clayton; Pedersen, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to compositions and methods of preparing amino chelates that are free of interfering ions and optionally, electrically , neutral. In one embodiment the compsosition is prepared by reacting in an aqueous solution a calcium oxide and/or hydroxide an amino acid, and a , soluble metal sulfate salt at a ratio sufficient to allow substantially all of the ions present in solution to react forming a metal amino acid chelate and an essentially inert calcium sulfate, and wherein the metal amino acid chelate has a ligand to metal molar ratio from 2:1 to 3:1. Alternatively the , composition can be prepared by reacting in an aqueous solution a calcium , oxide and/or …
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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 October 10, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2023.
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Timeline
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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.