The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2022
Filed:
Sep. 28, 2021
Pearl Therapeutics, Inc., Redwood City, CA (US);
Matthew Ferriter, Chapel Hill, NC (US);
Denny Himel, Cary, NC (US);
Brian Foster, Apex, NC (US);
Michael L. King, Durham, NC (US);
Dan Deaton, New Hill, NC (US);
Fred Hamlin, Cambridge, GB;
Jill Sherwood, Raleigh, NC (US);
Sarvajna Kumar Dwivedi, Redwood City, CA (US);
Robert V. Sheehy, Jr., N. Attleboro, MA (US);
Pearl Therapeutics, Inc., Redwood City, CA (US);
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.