Transdermal aqueous aryl-propionic-acid derivatives medication and methods of preparing same
CA 1269328 C · Owner: Dolorgiet Beteiligungs-Gmbh · Inventors: Wagener, Hans Henrich; Lohner, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Transdermally absorbable water-containing preparations of therapeutically active arylpropionic acid derivatives comprise 1 to 15% by weight of such active ingredient from 10 to 40% by, weight of polyoxyethylene polyoxypropylene copolymers from 10 to, 50% by weight of one or more physiologically acceptable organic solvents, optionally up to 1% by weight of preservatives colorants and/or perfumes, and at least 10% by weight of water. From polyoxyethylene polyoxypropylene copolymers having a relative molecular weight of more than 6,000 there may also be prepared gels, if certain ratios of amounts are chosen.
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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
- Granted May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
- 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.