Real time monitoring of small particle dissolution by way of light scattering
CA 2494516 A1 · Owner: Dow Global Technologies Inc. · Inventors: Tucker, Christopher J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for determining the percent of a solid material dissolved into a liquid medium is disclosed. The method comprises the steps of combining the solid material and the liquid medium; determining the initial solid concentration (i); determining the dynamic solid concentration (d) using a light scattering technique; and calculating the percent dissolved material according to the formula: (i - d)/i x 100 . Methods for determining dissolution rate and particle size using turbidity measurements are also disclosed.
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 July 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2025.
- 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.