A method for calibrating a particle counting apparatus
CA 2581709 C · Owner: Larsen, Ulrik Darling · Inventors: Larsen, Ulrik Darling
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to calibration of a particle characterisation apparatus in which particles suspended in a liquid are passed through an orifice one by one for characterisation of the particles for instance by , Coulter counting. The calibration does not require utilisation of special calibration particles or liquids. A priori knowledge of the shape of a typical size distribution of a blood sample is utilised to adjust the apparatus based on an initial relatively short counting period of the sample in question. The initially determined size distribution is compared to the corresponding known typical size distribution and the apparatus is subsequently adjusted to …
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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 September 30, 2005 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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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.