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Details for Patent: 5,775,321

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Patent 5,775,321 protects PROVENTIL-HFA, ZETONNA, and ALVESCO, and is included in three NDAs.

This patent has thirteen patent family members in seven countries.

Summary for Patent: 5,775,321

Title: Seal configuration for aerosol canister
Abstract:A dual seal configuration for an aerosol canister containing a medicinal aerosol formulation. The canister includes a vial body and valve ferrule sealed by first and second sealing members to form a chamber that contains the medicinal aerosol formulation. The dual seal configuration reduces leakage of contents, and is particularly helpful where the formulation includes hydrofluorocarbon propellant and an ethanol cosolvent. The first seal can be selected to be a barrier to the formulation components, while the second seal can be relatively more labile to such components.
Inventor(s): Alband; Todd D. (Eagan, MN)
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Application Number:08/361,719
Patent Claim Types:
see list of patent claims
Formulation; Device;

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
3m
PROVENTIL-HFA
albuterol sulfate
AEROSOL, METERED;INHALATION020503-001Aug 15, 1996RXYes5,775,321► subscribeY
Takeda Gmbh
ZETONNA
ciclesonide
AEROSOL, METERED;NASAL202129-001Jan 20, 2012RXYes5,775,321► subscribeY
Takeda Gmbh
ALVESCO
ciclesonide
AEROSOL, METERED;INHALATION021658-002Jan 10, 2008RXYes5,775,321► subscribeY
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Non-Orange Book Patents for Patent: 5,775,321

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
6,036,942 Seal configuration for aerosol canister► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 5,775,321

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia6665994► subscribe
Australia695969► subscribe
Canada2161632► 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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