Heparin assay
CA 1288673 C · Owner: Thompson, Robert W. · Inventors: Folkman, Moses Judah; Hannan, Robert L.; Langer, Robert S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The level of heparin in a blood sample is measured by measuring the clotting time of two aliquots of the blood sample, using standard clotting assays with one of the aliquots being firstly treated with a heparin-degrading compound, such as heparinase. The difference in clotting times is a direct measure of the heparin concentration in the sample.
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
- Granted September 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2008.
- 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.