A method of assaying the antioxidant activity of pure compounds, extracts and biological fluids
CA 2492005 A1 · Owner: Mcewan, Murray James · Inventors: Mcewan, Murray James; Senthilmohan, Somasuntharam Tharmalingam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A direct comparisons of the antioxidant activities of various pure compounds (eg. Trolox®(6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid) extracts and biological fluids (eg. human plasma) can be effected by means of standardisable, objective method of determining and measuring the antioxidative and oxidative radical scavenging activities of a natural or synthetic substance, including the measurement of an indicator reaction product gas, ethylene, in the reaction headspace using Selective Ion Flow Tube Mass Spectrometry (SIFT-MS). This method assays ethylene liberated from .alpha.-keto-.gamma.-methiolbutyric acid (KMBA) on reaction with peroxy radicals, other radicals 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 July 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2025.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.