Patents and Patent Applications

MEASURING ELECTROPHORETIC MOBILITY

United States US 2019/0011398, Filed Oct 19, 2017

An apparatus and method to obtain electrophoretic mobility information from a dilute colloidal dispersion using electrophoretic light scattering (ELS) is disclosed. Both laser Doppler electrophoresis and phase analysis light scattering data analysis methods may be applied to a scattered light signal simultaneously. Unlike previous ELS apparatuses and methods, the disclosed apparatus and method can measure electrophoretic mobility distributions in high ionic strength media…

PHARMACEUTICAL METERED DOSE INHALER AND METHODS RELATING THERETO

United States US 8198354, Issued June 12, 2012

Methods of preparing elastomeric gasket materials for use in metered dose inhalers that include contacting an elastomeric gasket material to be used in a metered dose inhaler, which gasket material comprises one or more extractable compounds, with a solution comprising an organic solvent under conditions sufficient to extract at least a portion of at least one of the one or more extractable…

PHARMACEUTICAL METERED DOSE INHALER AND METHODS RELATING THERETO

United States WO2005023330, Filed August 25, 2004

Metering valves for use in a metered dose inhaler that include a valve body (1), a first stem seal (9) including a first elastomeric material, a second stem seal (12) including a second elastomeric material different from the first elastomeric material, and a valve stem (7) slidably engaged with at least one of the first stem seal and the second stem seal as well as sealed containers configured…

FLUORINATED COPOLYMER SURFACTANTS AND USE THEREOF IN AEROSOL COMPOSITIONS

United States US 6451287, Issued September 17, 2002

Amphiphilic fluorinated block copolymers are disclosed which are useful for increasing the dispersability of particles, preferably drug particles, in a fluorine-containing propellant.

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