Dual resistance dry powder inhaler

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United States of America Patent

PATENT NO 10857312
APP PUB NO 20180093051A1
SERIAL NO

15566351

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Described is a dry powder inhaler for inhalation of a dry powder composition. The inhaler includes an external housing that defines an internal passage. The inhaler also includes a mouthpiece, a compartment for holding a dry powder capsule or powder reservoir, and a powder fluidization and deagglomeration apparatus for directing airflow to the dry powder to generate airborne powder particles within the internal passage. When a user inhales through the mouthpiece, a first airflow pattern is generated that has a first airflow resistance, during which the fluidization and deagglomeration apparatus generates airborne dry powder particles within the internal passage. Upon reaching a threshold negative pressure value within the internal passage of the inhaler, a second airflow pattern is generated having a second airflow resistance that is lower than the first airflow resistance, which pulls the airborne dry powder into the user's lungs during the inhalation. Embodiments of elastomeric valves are also described.

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Patent Owner(s)

Patent OwnerAddress
NICO PUFF CORPORATION181 BAY STREET SUITE 4400 TORONTO M5J 2T3

International Classification(s)

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Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alston, William San Jose, US 10 336
Ellis, Steven Ontario, CA 20 95
Han, Steve Huntington Beach, US 60 916
Slutsky, Arthur Toronto, CA 15 447
Stenzler, Alex Long Beach, US 112 2554
Zamel, Noe Toronto, CA 15 448

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges166818481583519441101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 80100 +010020030040050060070080090010001100120013001400150016001700180019002000

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