Method for improved radiation therapy
CA 2358989 A1 · Owner: Photogen, Inc. · Inventors: Wachter, Eric A.; Dees, H. Craig; Smolik, John T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed for treating a selected volume of tissue which method includes distributing a radiosensitizer and a plurality of ionizing radiation sources substantially within the volume of tissue to produce treatment zones that are generally uniformly distributed throughout the volume of tissue. An agent is also disclosed for treating such tissue wherein the agent includes a , radiosensitizer and an ionizing radiation source used in conjunction to define an injectable treatment agent.
Read the whole patent
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 January 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2022.
- 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.