Labeling targeting agents with gallium-68 and gallium-67
CA 2471817 C · Owner: Immunomedics, Inc. · Inventors: Griffiths, Gary L.; Mcbride, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and compositions are described for labeling a targeting agent with Ga- 68, in which eluate from an acid-eluted Ge-68/Ga-68 generator is combined with a macrocycle-containing targetable agent. The labeling method and compositions disclosed ensure that a simple elution of gallium-68 taken directly from a , generator, can be used without further manipulation to quantitatively label a macrocycle-containing targetable agent. The Ga-68 labeled targeting agent so produced is useful with specific targeting agents and is most especially , useful in a pretargeting method for positron emission tomographic detection.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 23, 2002 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.