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Last Updated: September 26, 2021

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Details for Patent: 4,855,294

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Summary for Patent: 4,855,294
Title: Method for reducing skin irritation associated with drug/penetration enhancer compositions
Abstract: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.
Inventor(s): Patel; Dinesh C. (Murray, UT), Ebert; Charles D. (Salt Lake City, UT)
Assignee: TheraTech, Inc. (Salt Lake City, UT)
Application Number:07/240,688
Patent Claim Types:
see list of patent claims
Composition; Compound; Use;

Drugs Protected by US Patent 4,855,294

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 4,855,294

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 96678 ⤷  Free Forever Trial
Canada 1332570 ⤷  Free Forever Trial
Germany 68910520 ⤷  Free Forever Trial
European Patent Office 0416137 ⤷  Free Forever Trial
Spain 2053882 ⤷  Free Forever Trial
Japan 2953625 ⤷  Free Forever Trial
Japan H02115131 ⤷  Free Forever Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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