Method and composition for preventing the adsorption of a medicine
CA 1258628 A · Owner: Chugai Seiyaku Kabushiki Kaisha · Inventors: Kawaguchi, Tsutomu; Shimoda, Naoto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure:, A method of preventing erythropoietin in an aqueous solution from being adsorbed on the inner surface of the wall of a container by incorporating in the aqueous solution one or more additives, and an erythropoietin composition so formulated as to avoid the adsorption of erythropoietin onto the inner surface of the wall of a container are disclosed. The additives which are useful in this invention include human serum albumin, bovine serum albumin lecithin, dextrans, ethylene oxide-propylene oxide copolymers hydroxypropyl cellulose, methylcellulose polyoxyethylene, hydrogenated castor oils polyethylene glycols and the like.
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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
- Granted August 22, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 22, 2006.
- 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.