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

Serving leading biopharmaceutical companies globally:

Fish and Richardson
Federal Trade Commission

Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 3,948,262

« Back to Dashboard

Summary for Patent: 3,948,262

Title: Novel drug delivery device
Abstract:A drug delivery device for administering a drug at a controlled rate for a prolonged period of time to produce a local or systemic physiological or pharmacological effect is comprised of a wall surrounding a reservoir containing a drug. The reservoir is formed of a drug carrier permeable to the passage of the drug and in which the drug has limited solubility. The wall is formed in at least a part of a drug release rate controlling material also permeable to the passage of the drug, but the rate of passage of the drug through the wall is lower than the rate passage of the drug through the drug carrier so that drug release by the wall is the drug release rate controlling step for releasing drug from the drug delivery device.
Inventor(s): Zaffaroni; Alejandro (Atherton, CA)
Assignee: Alza Corporation (Palo Alto, CA)
Application Number:05/556,546
Patent Claim Types:
see list of patent claims
Delivery; Device; Composition;

No matches for this query

International Patent Family for Patent: 3,948,262

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina195388► Subscribe
Austria334545► Subscribe
Austria336189► Subscribe
AustriaA626171► Subscribe
AustriaA844472► Subscribe
Australia467246► Subscribe
Australia4696972► Subscribe
Belgium769155► Subscribe
Belgium789524► Subscribe
Brazil7206816► 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
Harvard Business School
Johnson and Johnson

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: