Penetrating topical pharmaceutical compositions
CA 1165240 A · Owner: The Procter & Gamble Company · Inventors: Wickett, Richard R.; Loomans, Maurice E.; Cooper, Eugene R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Eugene R. Cooper, Maurice E. Loomans, Richard R. Wickett Abstract, A large group of lipophilic, pharmacologically active compounds can be effectively delivered across intact skin by applying them topically in a binary penetration-enhancing vehicle containing (1) a C3-C4 diol, diol ester, or diol ether and (2) a cell envelopedisordering compound. This vehicle provides surprising enhancement of skin penetration for the pharmacological active, compared to either component alone.
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 April 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2001.
- 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.