Method of producing a gaseous, hydrogen peroxide-containing sterilisation fluid
CA 2029169 C · Owner: Tetra Laval Holdings & Finance S.A. · Inventors: Bjerborn, Thomas; Martensson, Lars; Andersson, Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing a gaseous, hydrogen peroxide-containing sterilisation fluid displaying good, uniform sterilisation properties, by vaporisation of liqueform hydrogen peroxide which is injected intermittently in finely-divided form into an air current serving as vaporisation agent which is kept at a constant or but insignificantly varying elevated vaporisation temperature. The even vaporisation temperature of the air current is ensured in that the air, prior to the vaporisation is heated by heat, exchange with a heating element (11) of large mass (thermal capacity) and large heat exchange surface area which is kept at the de- sired elevated temperature by regulated energy supply to the …
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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 November 1, 1990 and granted June 30, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 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
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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.