Apparatus and method for controlling biomass growth in suspended carrier bioreactor
CA 2542918 C · Owner: Envirogen Technologies, Inc. · Inventors: Frisch, Samuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bioreactor configured to contain an aqueous suspension of biomass and media is provided. The invention includes a lift tube disposed within the vessel the lift tube having an inlet disposed at the bottom region of the vessel and an outlet disposed at the top region of the vessel. Disposed at the bottom of the lift tube is a gas inlet positioned to feed gas into the lift tube at a location proximal to the inlet of the lift tube. An adjustable weir is disposed proximal to the outlet of the lift tube the weir being adjustable between a lower position and a higher position. Biomass is removed from the weir and the weir height is adjustable to control the removal of biomass from the vessel. …
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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 April 12, 2006 and granted May 27, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 12, 2026.
- 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.