Use of plant extract for inhibition of haemophilus influenzae
CA 2280940 C · Owner: Tsai, Hsiu-Hsien · Inventors: Tsai, Hsiu-Hsien; Hwang, Shie-Ming
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The attachment of H. influenzae to human cells such as oropharyngeal cells is , inhibited by aqueous extracts of the plants known as Pogostemon cablin and Agastache rugosa. The composition obtained from the aqueous extraction of the plants Pogostemon cablin, Agastache rugosa or mixtures thereof is also effective in preventing or treating Otitis media and sore throat. The plant extract may be contained in a liquid enteral product such as an infant formula or may be incorporated into lozenges, candies chewing gums and the like. The , plant extract may also be administered as a throat spray or nasally using drops or a spray. A process for the production of a medicinal product is also …
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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 September 10, 1997 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2019.
- 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.