Method for the controlled oxidation of polysaccharides
CA 2575178 C · Owner: Montanari, Suzelei · Inventors: Condoret, Jean-Stephane; Vignon, Michel; Samain, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for the controlled oxidation of oligo- and/or polysaccharides containing free -CH2OH primary hydroxyl groups using an oxidising agent. The invention is characterised in that the oxidation reaction is performed in a densified fluid which is inert in relation to the oxidising agents employed. The invention is suitable for use for example, in the food, paint, paper textile, agricultural and pharmaceutical industries in the medical, biomedical or paramedical fields in the surgical field, in the cosmetic industry and as agents for the complexing or sequestering of metal ions heavy metals and radioactive elements in the nuclear industry.
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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 July 29, 2005 and granted February 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.