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Serving leading biopharmaceutical companies globally:

Fish and Richardson
US Department of Justice

Generated: October 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,898,724

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Summary for Patent: 4,898,724

Title: Organis amine phosphonic acid complexes for the treatment of calcific tumors
Abstract:Particle-emitting radionuclides, e.g. Samarium-153, have been complexed with organic aminoalkylenephosphonic acids wherein the nitrogen and phosphorus are interconnected by an alkylene group or substituted alkylene group. These complexes have been found useful in compositions for the therapeutic treatment of calcific tumors in animals.
Inventor(s): Simon; Jaime (Angleton, TX), Wilson; David A. (Richwood, TX), Volkert; Wynn A. (Columbia, MO), Troutner; David E. (Columbia, MO), Goeckeler; William F. (Midland, MI)
Assignee: The Dow Chemical Company (Midland, MI)
Application Number:07/050,263
Patent Claim Types:
see list of patent claims
Composition; Compound; Formulation; Use; Dosage form;

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International Patent Family for Patent: 4,898,724

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China1024196► Subscribe
China1046739► Subscribe
China1025983► Subscribe
China1091744► Subscribe
China1031191► Subscribe
Cyprus1902► Subscribe
Czech Republic9003796► Subscribe
Czech Republic290556► Subscribe
Germany68918852► Subscribe
Germany69027818► 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
Harvard Business School

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