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Details for Patent: 6,240,918

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Patent 6,240,918 protects ASMANEX TWISTHALER and is included in one NDA.

Protection for ASMANEX TWISTHALER has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has thirty-four patent family members in twenty-six countries.

Summary for Patent: 6,240,918

Title: Powdered medication inhaler
Abstract:A powder dispenser includes a reservoir body including a supply of powder and an inhalation conduit; a driving body for rotating the reservoir body and including upper recesses and two spring fingers in lower driving recesses thereof; a rotatable metering plate for carrying a metered amount of powder from the supply to the inhalation conduit, and having an underside with ribs; a gas permeable retainer welded to the ribs; a spring biasing the metering plate toward the reservoir body; a nozzle having spiked ribs welded in the upper recesses of the driving body and including a chimney with vertical flutes; an adapter non-rotatably mounted with respect to the metering plate and including two locking recesses for receiving the spring fingers for locking engagement and two helical cam tracks with a square cross-section; a closure cap covering the driving body and including priming ribs biasing the spring fingers out of the locking recesses and engaging with the locking recesses to rotate the driving body, and two cams riding within the cam tracks; a base non-rotatably connected with the metering plate; and a counter rotatably mounted on the base and including rotatable counter rings providing a visual count of the number of doses of powder to be dispensed, and a pawl assembly engaging with gear teeth of the counter rings for rotating the same, the pawl assembly including an outer wall, a pawl and a pawl spring integrally molded as a single piece.
Inventor(s): Ambrosio; Thomas J. (Somerville, NJ), Benson, Jr.; Warren A. (Woodville, WI), Dao; Kim C. (Wayne, NJ), Kenyon; David J. (Morristown, NJ), Kreiseder; Walter J. (Barrington, IL), Schonebaum; Theodore J. (Menomonie, WI), Vogel; Allen J. (Long Grove, IL), Walker; Louis B. (Menomonie, WI), Yang; Tsong-Toh (Warren, NJ)
Assignee: Schering Corporation (Kenilworth, NJ)
Application Number:08/803,363
Patent Claim Types:
see list of patent claims
Device; Use;
Patent Metrics:
Source: PatentQuant.com
Field: Medical technology
Back Citations: 29th percentile
Forward Citations: 0th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Merck Sharp Dohme
ASMANEX TWISTHALER
mometasone furoate
POWDER;INHALATION021067-002Feb 1, 2008RXNo6,240,918*PED► subscribeY
Merck Sharp Dohme
ASMANEX TWISTHALER
mometasone furoate
POWDER;INHALATION021067-001Mar 30, 2005RXYes6,240,918*PED► subscribeY
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International Patent Family for Patent: 6,240,918

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina005888► subscribe
Austria216903► subscribe
Australia1850897► 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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