Enzyme inhibitors for inactivating allergens
CA 2458542 A1 · Owner: Bavik, Claes · Inventors: Buttle, David; Bavik, Claes; Helm, Birgit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The inventive concept relates to the inactivation of allergens using inhibitors for hydrolytic enzymes, and preferably proteases. Embraced within the overall inventive concept is the use of hydrolytic enzyme inhibitors for manufacture of medicaments for the prophylactic treatment of allergic conditions, and formulations for their use. Also there is included a method , for the manufacture of air treatment devices with the enzyme inhibitor bound to the surface of the support material such as an air filter. There is also a formulation containing the enzyme inhibitors for inactivating allergenic residues on fabrics or carpets.
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 24, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 24, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2024.
- 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.