Method for inactivating pathogens in a body fluid
CA 2089005 C · Owner: Neyndorff, Herma C. · Inventors: Neyndorff, Herma C.; Chapman, John; Logan, Patricia M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method for inactivating pathogens in a body fluid such as plasma, red cells, platelets, leukocytes and bone marrow. The present invention minimizes adverse effects caused by the photosensitive agents while retaining the disinfecting activity of such agents and processes. Pursuant to the present invention prior to irradiating a body fluid, including a photoactive drug the extracellular fluid, which in the case of blod components includes plasma proteins is at least substantially reduced. Additionally, after the irradiation process the resultant body fluid is prevented from contacting additional extracellular fluid, e.g. plasma proteins for a predefined period.
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 June 15, 1992 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2014.
- 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.