Enzymatic determination of theophylline
CA 1339794 C · Owner: Agarwal, Arun Kumar · Inventors: Gupta, Surenda Kumar; Agarwal, Arun Kumar; Decastro, Aurora Fernandez
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 new methodology and test composition for determining the presence of theophylline in test samples. The methodology employs enzymes that utilize or recognize theophylline as a substrate to measure the concentration thereof in samples, including body fluids. This new approach utilizes enzymes as opposed to traditional methods which use antibodies for the recognition of theophylline. The enzymatic approach to theophylline determination is quick, simple and convenient and allows test systems to be made in liquid as well as in dry-chemistry formats. Various protocols systems or, methodologies may be used for assaying and relating the results to the amount of …
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 April 7, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2015.
- 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.