Biocatalyst carrier for bioreactor and method of treatment with biocatalyst
CA 2045780 A1 · Owner: Tanaka, Koji · Inventors: Tanaka, Koji; Uchida, Hiroshi; Kuroda, Masao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A biocatalyst carrier for a bioreactor contains an absorbent material and has the effect of a microfilter. Liquid or gas is treated with the biocatalyst carrier by a method which includes causing a liquid containing a biocatalyst to contact the biocatalyst carrier containing an absorbent material having a degree of swelling of at least 2 and possessing the effect of a microfilter thereby causing the carrier to absorb the liquid and consequently allowing the biocatalyst in the liquid to be attached to the surface of the carrier then bringing the, carrier into contact with at least one of the liquid and the gas to be treated.
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 June 27, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2013.
- 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.