O/w emulsion composition and method of preparing the same
CA 2429486 C · Owner: Otsuka Pharmaceutical Co. Ltd. · Inventors: Wakamatsu, Kosaburo; Tanaka, Masahiko; Yoshino, Noboru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an O/W emulsion composition containing an adenosine phosphate or salt thereof. More particularly, the invention provides an O/W emulsion composition which has excellent emulsion stability. The O/W emulsion composition of the invention can be prepared using an adenosine phosphate or salt thereof, a polyglycerin fatty acid ester an alkanoyl , lactylic acid or the salt thereof an acrylic acid-alkyl , methacrylate copolymer water, an oil, and preferably, a , polyhydric alcohol.
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 November 22, 2001 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2023.
- 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.