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Serving leading biopharmaceutical companies globally:

US Department of Justice
Farmers Insurance
Argus Health

Generated: November 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,508,297

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Summary for Patent: 5,508,297

Title: Vascular hypertrophy suppression treatment
Abstract:This invention relates to a method for the prophylaxis or treatment of vascular hypertropy in a mammal by administering a pharmaceutically effective amount of a compound represented by the formula (I): ##STR1## wherein ring W is a nitrogen-containing heterocyclic ring residue which may be substituted; R.sup.1 is hydrogen or an optionally substituted hydrocarbon residue which optionally binds through a hetero-atom; R.sup.3 represents a group capable of forming an anion or a group capable of changing thereto; X shows that the phenylene and phenyl groups bind to each other directly or through a spacer having an atomic length of two or less; n denotes 1 or 2; a and b forming the heterocyclic ring residue are independently one or two optionally substituted carbon or hetero atoms; c is an optionally substituted carbon or hetero atom; provided that, when the ring W is a condensed ring, R.sup.1 is hydrogen or an optionally substituted hydrocarbon residue which binds through a hetero atom, or a salt thereof to a mammal in need thereof.
Inventor(s): Nishikawa; Kohei (Kyoto, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:08/201,122
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 5,508,297

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan5-036630Feb 25, 1993

International Patent Family for Patent: 5,508,297

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria218861► Subscribe
Canada2115985► Subscribe
Germany69430766► Subscribe
European Patent Office0612523► Subscribe
Spain2173895► Subscribe
JapanH06305966► 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:

Fish and Richardson
Argus Health
Express Scripts
Queensland Health
Federal Trade Commission

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