Last Updated: September 24, 2026

Details for Patent: 11,833,292


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Summary for Patent: 11,833,292
Title:Drug delivery systems and related methods
Abstract:Systems and methods for isolating and/or desiccating a portion of a drug delivery tract of a drug delivery apparatus to reduce water vapor content therein are provided. For example, there is provided a metered dose inhaler for delivering aerosolized medicament or other matter to a user. The aerosolized medicament or other matter may be discharged from a discharge passageway within the inhaler into an inhalation passageway for inhalation by a user, and the inhaler may comprise a seal member operative to selectively isolate the discharge passageway from the inhalation passageway and external environment during inactivity. The inhaler may further comprise a desiccant material arranged to withdraw moisture from the isolated discharge passageway. In other instances, desiccant material may be arranged to withdraw moisture from the discharge passageway of the inhaler without isolating the discharge passage during inactivity.
Inventor(s):Matthew Ferriter, Denny Himel, Brian Foster, Michael L. King, Dan Deaton, Fred Hamlin, Jill Sherwood, Sarvajna Kumar Dwivedi, Robert V. Sheehy, Jr.
Assignee: Pearl Therapeutics Inc
Application Number:US16/754,585
Patent Claim Types:
see list of patent claims
Formulation; Delivery; Device;

Drugs Protected by US Patent 11,833,292

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Astrazeneca Ab BREZTRI AEROSPHERE budesonide; formoterol fumarate; glycopyrrolate AEROSOL, METERED;INHALATION 212122-001 Jul 23, 2020 RX Yes Yes 11,833,292 ⤷  Start Trial Y ⤷  Start Trial
Astrazeneca Ab BREZTRI AEROSPHERE budesonide; formoterol fumarate; glycopyrrolate AEROSOL, METERED;INHALATION 212122-002 Apr 27, 2026 RX Yes Yes 11,833,292 ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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