Details for Patent: 5,670,547
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Summary for Patent: 5,670,547
| Title: | Moisturizing vehicle for topical application of vitamin A acid |
| Abstract: | A formulation containing tretinoin, a gelling agent, proteinaceous material, and water is provided for the uniform topical application of tretinoin. The water-based formulation is oil- and fat-free, alcohol-free, and rich in proteinaceous material. The formulation is stable over time and is comedogenic and less irritating and drying to the skin. |
| Inventor(s): | Milstein; Elliott A. (West Bloomfield, MI), Milstein; Nathan (Hazel Park, MI) |
| Assignee: | Dow Pharmaceutical Sciences (Petaluma, CA) |
| Application Number: | 08/430,154 |
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Patent Claim Types: see list of patent claims | Formulation; Delivery; Composition; |
Drugs Protected by US Patent 5,670,547
| 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 |
International Family Members for US Patent 5,670,547
| Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
|---|---|---|---|---|---|
| Australia | 5296890 | ⤷ Sign Up | |||
| Australia | 633892 | ⤷ Sign Up | |||
| Canada | 2014437 | ⤷ Sign Up | |||
| China | 1047802 | ⤷ Sign Up | |||
| Czechoslovakia | 9001911 | ⤷ Sign Up | |||
| German Democratic Republic | 298352 | ⤷ Sign Up | |||
| European Patent Office | 0393904 | ⤷ Sign Up | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
