Deeper Knowledge, Faster

  • Identify first generic entrants
  • Uncover prior art in expired and abandoned patents
  • Obtain formulation and manufacturing information

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

Serving leading biopharmaceutical companies globally:

Daiichi Sankyo
US Department of Justice
Farmers Insurance
Harvard Business School
Express Scripts

Generated: November 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,601,839

« Back to Dashboard

Summary for Patent: 5,601,839

Title: Triacetin as a penetration enhancer for transdermal delivery of a basic drug
Abstract:A composition and method for enhancing transdermal penetration of a basic drug are described. The composition comprises a matrix patch comprising an effective amount of a basic drug, preferably having a pK.sub.a of about 8.0 or greater, an effective amount of penetration enhancer consisting essentially of triacetin, and a polymer later preferably comprising a pressure-sensitive adhesive. A preferred basic drug is oxybutynin and acid addition salts thereof. The method for enhancing transdermal penetration comprises applying the matrix patch to a selected area of skin.
Inventor(s): Quan; Danyi (Salt Lake City, UT), Deshpanday; Ninad A. (Salt Lake City, UT), Venkateshwaran; Srinivasan (Salt Lake City, UT), Ebert; Charles D. (Salt Lake City, UT)
Assignee: TheraTech, Inc. (Salt Lake City, UT)
Application Number:08/429,757
Patent Claim Types:
see list of patent claims
Use; Composition;

No matches for this query

International Patent Family for Patent: 5,601,839

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany122005000013► Subscribe
Germany69615399► Subscribe
Denmark0871420► Subscribe
European Patent Office0871420► SubscribeCA 2005 00010Denmark► Subscribe
European Patent Office0871420► Subscribe05C0008France► Subscribe
China1143688► Subscribe
China1182358► Subscribe
China1507918► Subscribe
China1714867► Subscribe
China100374161► Subscribe
This preview shows a limited data set
Subscribe for full access, or try a Trial

The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

Export unavailable in trial.
Subscribe for complete access.

For more information try a trial or see the database preview and plans and pricing

Serving leading biopharmaceutical companies globally:

US Department of Justice
US Army
Daiichi Sankyo
Federal Trade Commission

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

Copyright 2002-2017 thinkBiotech LLC
ISSN: 2162-2639

Secure SSL Encrypted
Privacy and Cookies
Terms & Conditions

Follow DrugPatentWatch:

Google Plus