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Serving leading biopharmaceutical companies globally:

Daiichi Sankyo
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Generated: December 13, 2017

DrugPatentWatch Database Preview

Details for Patent: 6,521,260

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Summary for Patent: 6,521,260

Title: Carrier particles for use in dry powder inhalers
Abstract:A powder for use in a dry powder inhaler includes active particles and carrier particles for carrying the active particles. The powder further includes additive material (4) on the surfaces of the carrier particles to promote the release of the active particles from the carrier particles on actuation of the inhaler. The powder is such that the active particles are not liable to be released from the carrier particles before actuation of the inhaler. The inclusion of additive material (4) in the powder has been found to give an increased respirable fraction of the active material.
Inventor(s): Staniforth; John Nicholas (Bath, GB)
Assignee: Vectura Limited (Londen, GB)
Application Number:09/680,863
Patent Claim Types:
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Composition; Delivery; Use;

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Foreign Priority and PCT Information for Patent: 6,521,260

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9501841Jan 31, 1995
United Kingdom9521937Oct 26, 1995

International Patent Family for Patent: 6,521,260

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Slovakia103697► Subscribe
Slovenia1666023► Subscribe
Slovenia1232745► Subscribe
Portugal1666023► Subscribe
Portugal1232745► Subscribe
Portugal806938► Subscribe
Poland186757► Subscribe
Poland321572► Subscribe
New Zealand300654► Subscribe
Norway973502► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Chinese Patent Office
Johnson and Johnson
Harvard Business School
Fish and Richardson
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