High recovery psa cycles and apparatus with reduced complexity
CA 2835636 C · Owner: Lummus Technology Inc. · Inventors: Lomax, Franklin D. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure swing adsorption process including the step of separating a gas mixture by absorbing a gas component in adsorbent beds provided within vessels where the separating step has at least a two-stage pressure equalization and is performed with no more than five valves per vessel of the plurality of vessels. The process includes an adsorption step a first pressure equalization step having at least two stages where the pressure decreases a purge step, and a second pressure equalization step having at least two stages where the pressure increases. A pressure swing adsorption system is provided with vessels each having a first opening connected to a source manifold via a first valve and …
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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 October 10, 2003 and granted May 17, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2025.
- 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.