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Serving leading biopharmaceutical companies globally:

Daiichi Sankyo
Harvard Business School
US Army
Express Scripts
Federal Trade Commission

Generated: December 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,921,843

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Summary for Patent: 4,921,843

Title: Contraception system and method
Abstract:A method of contraception is disclosed which comprises a two-stage protocol. In the first stage, an estrogenic compound in a first composition is administered daily as the sole contraceptively active substance to a human female from about Day 2 to about Day 7 of her menstrual cycle, where Day 1 is the first day of menses. The second stage of the protocol occurs immediately thereafter during which at least one follow-up composition containing a progestin is administered daily to the same human female. The follow-up composition can contain a progestin as the sole contraceptively active ingredient, or can contain a combination of an estrogenic compound with a progestin in different weight ratios. A drug delivery system containing daily dosage units is also described.
Inventor(s): Pasquale; Samuel A. (Basking Ridge, NJ)
Application Number:07/260,447
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form; Delivery; Compound;

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International Patent Family for Patent: 4,921,843

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany68928897► Subscribe
European Patent Office0397823► Subscribe
Finland103951► Subscribe
HungaryT51899► Subscribe
Canada2001144► Subscribe
Australia4497089► Subscribe
Australia620940► Subscribe
Austria175353► Subscribe
Hungary211931► Subscribe
Israel92069► Subscribe
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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.

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Serving leading biopharmaceutical companies globally:

Harvard Business School
Federal Trade Commission
Daiichi Sankyo

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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