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Serving leading biopharmaceutical companies globally:

Harvard Business School
Queensland Health
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Generated: November 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,836,299

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Summary for Patent: 5,836,299

Title: Seals for use in an aerosol delivery device
Abstract:A device for delivering an aerosol, comprising: a casing member, a valve stem, and a diaphragm. The diaphragm is made of an ethylene-propylene-diene rubber ("EPDM") and is stable to dimensional change when exposed to 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3-heptafluoroethane.
Inventor(s): Kwon; Oh-Seung (Woodbury, MN)
Assignee: Minnesota Mining & Manufacturing Co. (St. Paul, MN)
Application Number:08/397,546
Patent Claim Types:
see list of patent claims
Formulation; Delivery; Device;

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International Patent Family for Patent: 5,836,299

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada2166970► Subscribe
Germany9422364► Subscribe
Germany69412626► Subscribe
European Patent Office0708805► Subscribe
Australia7395694► Subscribe
Australia680530► Subscribe
Spain2119219► Subscribe
JapanH09500300► Subscribe
Japan3172190► Subscribe
World Intellectual Property Organization (WIPO)9502651► 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:

Farmers Insurance
US Department of Justice

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