Compositions containing ibuprofen
CA 1309351 C · Owner: Mallinckrodt, Inc. · Inventors: Denton, Larry E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: A granular composition containing 2-(4isobutylphenyl)propionic acid (ibuprofen) as an active anti-inflammatory pharmaceutical ingredient as a major component, together with carboxymethylcellulose, a lubricant and water as minor components is, disclosed. Particles of ibuprofen and carboxymethylcellulose are both fluidized and coated with an aqueous dispersion of a starch binder. After being dried to a moisture level of about 1-5% and blended with a lubricant and additional carboxymethylcellulose, the resulting granules can be directly molded into a pharmaceutically acceptable tablet having high hardness, short disintegration time and fast dissolution rate.
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
- Granted October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
- 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.