Reagent system and process for adenosine triphosphate monitoring
CA 2483570 C · Owner: Whalen, Patrick A. · Inventors: Cairns, James E.; Whalen, Patrick A.; Whalen, Phillip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reagent system comprises a first reagent which includes a high pH phosphate buffer and a second reagent which includes luciferase luciferin, a magnesium salt and an enzyme stabilizer. The second reagent has a low pH and a buffer with a pK which is near the optimum pH for activity of luciferase. The reagent system may be used in a process for measuring total adenosine triphosphate (ATP) and/or dissolved extracellular ATP in a fluid containing microorganisms. The reagent system may also be used in a microbiological remediation or production process.
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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 October 1, 2004 and granted June 28, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 1, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 2026.
- 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
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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.