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Serving leading biopharmaceutical companies globally:

Express Scripts
Queensland Health
US Department of Justice
Boehringer Ingelheim
Johnson and Johnson

Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,335,139

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Summary for Patent: 4,335,139

Title: Pharmaceutical formulations containing prostacyclin compounds
Abstract:Stabilized pharmaceutical formulations of prostacyclin or certain analogues thereof comprising an amino acid buffer, optionally containing a base, and the preparation of such formulations.
Inventor(s): Watts; Ian S. (Sidcup, GB2), Marsden; Peter H. (Dartford, GB2)
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Application Number:06/182,054
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Use;

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Foreign Priority and PCT Information for Patent: 4,335,139

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom20175/78May 17, 1978

International Patent Family for Patent: 4,335,139

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria4411► Subscribe
AustriaA363479► Subscribe
Austria365926► Subscribe
Australia525695► Subscribe
Australia4704279► Subscribe
Belgium876296► Subscribe
Canada1141661► Subscribe
Switzerland641044► Subscribe
Czechoslovakia214798► Subscribe
Germany2920020► 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:

Argus Health
US Army
Cantor Fitzgerald
US Department of Justice
Farmers Insurance

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