Improved bactericidal and non-bactericidal solutions for removing biofilms
CA 2350245 A1 · Owner: Universite De Montreal · Inventors: Barbeau, Jean; Habi, Abdelkrim; Gravel, Denis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to compositions for removing biofilms from contaminated surfaces. The compositions minimally comprise a detergent and a salt or a salt-forming acid. These components act together for rapidly and efficiently dismantle biofilms. The compositions may also comprise a bactericide, for destroying bacteria. One of the preferred compositions achieves, when reconstituted in a determined volume of water, concentrations of 0.5 % cetylpyridinium moieties 1 % EDTA , and 1 % of an acid or a salt of an acid selected from mandelic, glycolic, fumaric, citric and phosphoric acids or a mixture , thereof, at a pH higher than about 7.5. This composition removes and destroys biofilms.
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 November 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2021.
- 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.