Process for production of hydrogen from anaerobically decomposed organic material
CA 2399400 C · Owner: Roychowdhury, Sukomal · Inventors: Roychowdhury, Sukomal; Mcalister, Roy Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Anaerobically decomposed organic materials such as landfill material or sewage sludge are treated by passage of , an electric current therethrough in order to enhance production of hydrogen suppress formation of methane and decrease the time required to process such materials. A process and apparatus for separation of carbon dioxide from other gaseous material produced by decomposition of organic material are also disclosed.
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 February 1, 2000 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2022.
- 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.