.

Deeper Knowledge, Faster

  • Analyze global market entry opportunities
  • Identify first generic entrants
  • Drug patents and clinical trials in dozens of countries

► See Plans and Pricing

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

Serving 500+ biopharmaceutical companies globally:

McKinsey
Merck
Daiichi Sankyo
Baxter
Express Scripts
Johnson and Johnson
Boehringer Ingelheim
Dow
Accenture
Medtronic

Generated: June 23, 2017

DrugPatentWatch Database Preview

Details for Patent: RE33994

« Back to Dashboard

Summary for Patent: RE33994

Title: Pharmaceutical delivery system
Abstract:A composition for use in an aqueous environment which .[.comprise.]. .Iadd.comprises .Iaddend.a formulation containing a water-soluble pharmaceutically beneficial agent, a water-insoluble, water-permeable film coating surrounding the formulation, and particulate, water-soluble, pore-forming material dispersed within the film coating. The questions raised in reexamination request No. 90/001,344, filed Oct. 5, 1987, have been considered and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U.S.C. 307 as provided in 37 CFR 1.570(e).
Inventor(s): Baker; Richard W. (Palo Alto, CA), Brooke; James W. (Sisters, OR)
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Application Number:07/390,518
Patent Claim Types:
see list of patent claims
Composition; Dosage form;

No matches for this query

Foreign Priority and PCT Information for Patent: RE33994

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8322007Aug 16, 1983

International Patent Family for Patent: RE33994

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada1239034► Subscribe
Canada1321754► Subscribe
Germany10075031► Subscribe
Germany3485618► Subscribe
Germany3486409► 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 500+ biopharmaceutical companies globally:

US Department of Justice
Chinese Patent Office
Harvard Business School
Federal Trade Commission
Farmers Insurance
Boehringer Ingelheim
Covington
Johnson and Johnson
Mallinckrodt
McKesson

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

Follow DrugPatentWatch:



Google
Twitter
Google Plus
botpot