Apparatus for the low-temperature separation of a gas mixture, in particular air
CA 2528735 C · Owner: Huppenberger, Markus · Inventors: Brox, Andreas; Huppenberger, Markus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus is used to produce a product by low-temperature separation of a gas mixture in particular air. It includes a direct contact cooler (3) for cooling the feed mixture a purification apparatus (4) for purifying the cooled feed mixture and a low-temperature part (7). The low-temperature part (7) includes a main heat exchanger (8a) for cooling the purified feed mixture to approximately dewpoint temperature and a distillation column (9a) for low-temperature separation of the feed mixture. The direct contact cooler (3) the purification apparatus (4) and the low-temperature part (7) are arranged on one line (101).
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 2, 2005 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.