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Serving leading biopharmaceutical companies globally:

Baxter
Covington
McKinsey
Harvard Business School
Boehringer Ingelheim
Citi
Johnson and Johnson
Novartis
Colorcon
Cantor Fitzgerald

Generated: January 18, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,704,282

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Summary for Patent: 4,704,282
Title: Transdermal therapeutic system having improved delivery characteristics
Abstract:A transdermal therapeutic system using a subsaturated matrix is provided having improved approved release characteristics. Reinforcing means preferably in the form of a fabric are embedded in the upper surface of the subsaturated matrix. At least a portion of the reinforcing means is selected such that the active agent to be delivered to the skin has a solubility, C.sub.r therein which is lower than the initial solubility C.sub.o of the agent in the matrix. In addition, the relationship between the diffusion coefficients of the agent in the matrix D.sub.m and the portion of reinforcing means D.sub.r and the solubilities is given by the relationship: D.sub.r .multidot.C.sub.r <D.sub.m .multidot.C.sub.o. In operation the agent dissolved in the reinforcing means acts as a secondary reservoir improving the release characteristics of the system. Specific embodiments of the invention are particularly adapted for scrotal and labial delivery of drugs such as testosterone and progesterone.
Inventor(s): Campbell; Patricia S. (Palo Alto, CA), Eckenhoff; James B. (Los Altos, CA)
Assignee: Alza Corporation (Palo Alto, CA)
Application Number:06/626,095
Patent Claim Types:
see list of patent claims
Use;

Drugs Protected by US Patent 4,704,282

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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International Patents Family Members for US Patent 4,704,282

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany 3687067 ➤ Subscribe
European Patent Office 0232580 ➤ Subscribe
Spain 296615 ➤ Subscribe
Spain 556380 ➤ Subscribe
Spain 8706455 ➤ Subscribe
France 2571623 ➤ Subscribe
United Kingdom 8514446 ➤ Subscribe
United Kingdom 2161073 ➤ Subscribe
United Kingdom 8615106 ➤ Subscribe
Germany 3523065 ➤ Subscribe
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving leading biopharmaceutical companies globally:

Citi
Julphar
Argus Health
Cantor Fitzgerald
Federal Trade Commission
Farmers Insurance
Deloitte
Fuji
Covington

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.

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