Method for reducing skin irritation associated with drug/penetration enhancer compositions
CA 1332570 C · Owner: Ebert, Charles D. · Inventors: Ebert, Charles D.; Patel, Dinesh C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition and method for reducing the skin irritation properties of a transdermal drug/enhancer composition which comprises incorporating into said composition, either prior to or at the time of application the skin, an effective amount of glycerin. When incorporated into the drug/enhancer composition prior to application to the skin the glycerin content will be between about 0.1 and 70 wt.%, preferably between about 1.0 and 50 wt.% and most preferably between about 5.0 and 20 wt.% of the composition.
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 18, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 18, 2011.
- 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.