Stabilized dispersed enzymes
CA 2028968 A1 · Owner: Kingston Diagnostics, L.P. · Inventors: Thakore, Yatin B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Enzymes are immobilized stabilized and evenly, dispersed without destroying their activity by sequestering them within micropores of a solid carrier structure and filling the pores with a water-immiscible organic liquid in which the, enzyme remains active. The preferred solid carrier is a microporous membrane. The system is manufactured by providing a solid carrier having a microporous surface whose pores contain an aqueous solution, allowing an aqueous solution of enzyme to equilibrate with the solution in the pores causing a, controlled partial collpase of the pores to effectively trap the enzymes, and replacing the liquid in the pores with a water-immiscible organic liquid. The system …
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 October 31, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 31, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2012.
- 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.