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Serving leading biopharmaceutical companies globally:

Express Scripts
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Generated: October 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,432,963

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Summary for Patent: 4,432,963

Title: Radiographic scanning agent
Abstract:A composition and method for the preparation of a technetium-99m-based scanning agent are disclosed. The scanning agent is prepared from .sup.99m Tc, in a +3, +4 and/or +5 oxidation state, and a methanehydroxydiphosphonate bone-seeking agent which carries the radionuclide to bone mineral. The methanehydroxydiphosphonate agent provides scan sharpness equivalent or superior to commercial scanning agents, and is superior for detecting myocardial infarcts, as compared with commercial scanning agents such as ethane-1-hydroxy-1,1-diphosphonate and methanediphosphonate.
Inventor(s): Bevan; John A. (Cincinnati, OH)
Assignee: Mallinckrodt, Inc. (St. Louis, MO)
Application Number:06/225,151
Patent Claim Types:
see list of patent claims
Compound; Composition;

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International Patent Family for Patent: 4,432,963

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia530496► Subscribe
Australia4935979► Subscribe
Canada1143285► Subscribe
Canada1157033► Subscribe
Germany2966389► Subscribe
Germany2967636► Subscribe
Denmark324479► Subscribe
Denmark156412► Subscribe
European Patent Office0007676► Subscribe
European Patent Office0040895► 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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