Method for making insulin precursors and insulin precursor analogs
CA 2392840 C · Owner: Kaarsholm, Niels Christian · Inventors: Ludvigsen, Svend; Kaarsholm, Niels Christian; Kjeldsen, Thomas Borglum
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel insulin precursors and insulin precursor analogs having a mini C-peptide comprising at least one aromatic amino acid residue have an increased folding stability. The novel insulin precursors and insulin precursor analogs can be expressed in yeast in high yields and are preferably not more 15 amino acid residues in length. Also provided are polynucleotide sequences encoding the claimed precursors or precursor analogs and vectors and cell lines containing such polynucleotide sequences.
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 December 4, 2000 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2022.
- 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.