Weight-optimized portable oxygen concentrator
CA 2732140 C · Owner: Air Products And Chemicals, Inc. · Inventors: Occhialini, James Michael; Steigerwalt, Craig E.; Labuda, Matthew James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for producing an oxygen-rich product gas comprising: (a) providing a primary gas mover including a first compressor for compressing atmospheric air to provide pressurized feed air and a second compressor adapted to compress an oxygen-depleted waste gas from subatmospheric pressure to atmospheric pressure a drive motor for driving the first and second compressors and a rechargeable battery for providing power to the drive motor wherein the rechargeable power supply is characterized by an operating run time between maximum and minimum working charge; (b) providing a pressure/vacuum swing adsorption system adapted to separate the pressurized feed air into the oxygen-rich product gas …
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 May 16, 2005 and granted August 27, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 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.