Processes for producing coenzyme q10
CA 2471763 C · Owner: Yajima, Kazuyoshi · Inventors: Kato, Takahisa; Kitamura, Shiro; Kanda, Akihisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process for producing reduced coenzyme Q10 which comprises obtaining microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10 optionally disrupting the cells and recovering thus--produced reduced coenzyme Q10. The present invention also relates to a process for producing oxidized coenzyme Q10 which comprises either recovering oxidized coenzyme Q10 after oxidizing the above-mentioned microbial cells or disrupted product thereof, or recovering reduced coenzyme Q10 from the above-mentioned microbial cells or disrupted product thereof to oxidize thus-obtained reduced coenzyme Q10 …
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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 December 27, 2002 and granted February 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2024.
- 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
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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.