Enzyme coupled with polymeric molecules for skin care
CA 2277618 A1 · Owner: Novozymes A/S · Inventors: Prento, Annette; Olsen, Arne Agerlin
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 modified enzymes suitable for skin care having from 4 to 70 polymeric molecules with a molecule weight from 1 to 35 , kDa coupled covalently to the surface of parent enzymes having a molecule weight from 15 to 100 kDa. Further the invention is directed towards skin care compositions and products comprising such modified enzymes and finally the use of said modified enzyme for reducing the sensitisation potential of skin care products.
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 January 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2020.
- 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.