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Generated: November 18, 2017

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Details for Patent: 5,547,656

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Summary for Patent: 5,547,656

Title: Low density microspheres and their use as contrast agents for computed tomography, and in other applications
Abstract:Substantially homogeneous aqueous suspensions of low density microspheres are presented as contrast media for imaging the gastrointestinal tract and other body cavities using computed tomography. In one embodiment, the low density microspheres are gas-filled. With computed tomography, the contrast media serve to change the relative density of certain areas within the gastrointestinal tract and other body cavities, and improve the overall diagnostic efficacy of this imaging method.
Inventor(s): Unger; Evan C. (Tucson, AZ)
Assignee: Imarx Pharmaceutical Corp. (Tucson, AZ)
Application Number:08/449,090
Patent Claim Types:
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Delivery; Compound; Device; Use;

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International Patent Family for Patent: 5,547,656

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Denmark0580726► Subscribe
Denmark0804932► Subscribe
European Patent Office0762899► Subscribe
European Patent Office0580726► Subscribe
European Patent Office0760684► Subscribe
Germany69231830► Subscribe
Germany69229342► Subscribe
China1160357► Subscribe
China1149259► Subscribe
Canada2191079► 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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