Water soluble powders and tablets
CA 2436010 C · Owner: Ubbink, Johan Bernard · Inventors: Chmiel, Wolfgang-Oliver Stephan; Ubbink, Johan Bernard; Schoonman, Johanna Hendrika
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to water soluble or water dispersible powders or tablets based on a carbohydrate matrix with improved dissolution properties in water. The powders or tablets or a precursor therefor are subjected to treatment with a gas so that gas is entrapped in the powder of tablet which comprises , providing the powder or tablet with sufficient closed porosity so that gas entrapped therein promotes dissolution or dispersion on contact with water. The powders or tablets may be pharmaceuticals or foods.
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 January 25, 2002 and granted September 27, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2024.
- 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.