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:
Jun. 30, 2015
Filed:
Oct. 19, 2007
Philip A. Jinks, Loughborough, GB;
Graham R. Purkins, Loughborough, GB;
Peter D. Hodson, Breaston, GB;
Paul E. Hansen, Lake Elmo, MN (US);
Philip A. Jinks, Loughborough, GB;
Graham R. Purkins, Loughborough, GB;
Peter D. Hodson, Breaston, GB;
Paul E. Hansen, Lake Elmo, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Abstract
A metered dose valve for use in a pressurized metered dose dispenser for dispensing a metered dose of an aerosol formulation comprising particles of a medicament suspended in liquefied propellant, optionally in combination with one or more excipients, the valve comprising a metering chamber and at least one porous, fluid permeable, particulate semi-permeable body, the at least one porous body being positioned within a region of the interior conduit of the valve, for example within the metering chamber, or a pre-metering chamber and/or an internal channel upstream of the metering chamber.