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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
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Generated: October 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,208,398

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Summary for Patent: 4,208,398

Title: Technetium-labeled complexes, production and use thereof
Abstract:Novel chemical complexes containing a radioactive technetium isotope are kidney specific when the complexing agents are certain ionic, water-soluble mercaptans. The complexes can be made by reducing pertechnetate ion and reacting the reduced technetium species with the mercaptan. The complexes are normally used in a biologically sterile, substantially isotonic aqueous medium, for diagnostic purposes.
Inventor(s): Kubiatowicz; David O. (Arden Hills, MN), Bolles; Theodore F. (Woodbury, MN)
Assignee: Hoffman-La Roche Inc. (Nutley, NJ)
Application Number:05/570,254
Patent Claim Types:
see list of patent claims
Compound; Composition; Formulation;

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International Patent Family for Patent: 4,208,398

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia475839► Subscribe
Australia520168► Subscribe
Australia1320976► Subscribe
Australia6815174► Subscribe
Brazil7403227► Subscribe
Canada1029721► Subscribe
Switzerland605475► Subscribe
Switzerland609662► Subscribe
Germany2617224► Subscribe
France2226184► 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:

Boehringer Ingelheim
Daiichi Sankyo
Fish and Richardson
Chinese Patent Office

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