Details for Patent: RE41134
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Summary for Patent: RE41134
| Title: | Slow release vehicles for minimizing skin irritancy of topical compositions |
| Abstract: | .[.Staple.]. .Iadd.Stable.Iaddend., aqueous gel vehicles are provided for the topical application to the skin of irritating active ingredients such as retinoids, particularly tretinoin, with slow release of the active ingredient and minimal irritancy to the skin. The vehicles include a gelling agent effective to form a gel and hold the active ingredient in the aqueous medium for slow release on the skin, and an effective amount of an antioxidant to retard decomposition of the active ingredient. The vehicles and formulations are preferably aqueous emulsions which contain a solubilizing agent for the generally non-water soluble active ingredients, as well as usually an emulsifying agent and/or surfactant. Chelating agents, emollients, preservatives and other adjuvants and additives may also be included in the vehicles and formulations. |
| Inventor(s): | Bazzano; Gail S. (Metairie, LA) |
| Assignee: | Alyzan, Inc. (Metairie, LA) |
| Application Number: | 10/999,235 |
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Patent Claim Types: see list of patent claims | Use; Composition; |
Drugs Protected by US Patent RE41134
| Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| >Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Patented / Exclusive Use | >Submissiondate |
Foreign Priority and PCT Information for Patent: RE41134
| PCT Information | |||
| PCT Filed | June 07, 1999 | PCT Application Number: | PCT/US90/03219 |
| PCT Publication Date: | December 13, 1990 | PCT Publication Number: | WO90/14833 |
International Family Members for US Patent RE41134
| Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
|---|---|---|---|---|---|
| Canada | 2063576 | ⤷ Try a Trial | |||
| Germany | 69029804 | ⤷ Try a Trial | |||
| European Patent Office | 0481007 | ⤷ Try a Trial | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
