Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Keith P. Johnston, Austin US

Keith P. Johnston, Austin, TX US

Patent application numberDescriptionPublished
20090074649Light-emitting nanoparticles and methods of making same - A method for the production of a robust, chemically stable, crystalline, passivated nanoparticle and composition containing the same, that emit light with high efficiencies and size-tunable and excitation energy tunable color. The methods include the thermal degradation of a precursor molecule in the presence of a capping agent at high temperature and elevated pressure. A particular composition prepared by the methods is a passivated silicon nanoparticle composition displaying discrete optical transitions.03-19-2009
20090208582Templated Open Flocs of Anisotropic Particles for Enhanced Pulmonary Delivery - The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.08-20-2009
20100183721ENHANCED DELIVERY OF IMMUNOSUPPRESSIVE DRUG COMPOSITIONS FOR PULMONARY DELIVERY - The present invention includes compositions and methods for making and using a rapid dissolving, high potency, substantially amorphous nanostructured aggregate for pulmonary delivery of tacrolimus and a stabilizer matrix comprising, optionally, a polymeric or non-polymeric surfactant, a polymeric or non-polymeric saccharide or both, wherein the aggregate comprises a surface area greater than 5 m07-22-2010
20100221343COMPOSITIONS AND METHODS OF MAKING BRITTLE-MATRIX PARTICLES THROUGH BLISTER PACK FREEZING - The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.09-02-2010
20100247506FORMATION OF STABLE SUBMICRON PEPTIDE OR PROTEIN PARTICLES BY THIN FILM FREEZING - The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm09-30-2010
20110171789LIGHT-EMITTING NANOPARTICLES AND METHOD OF MAKING SAME - A method for the production of a robust, chemically stable, crystalline, passivated nanoparticle and composition containing the same, that emit light with high efficiencies and size-tunable and excitation energy tunable color. The methods include the thermal degradation of a precursor molecule in the presence of a capping agent at high temperature and elevated pressure. A particular composition prepared by the methods is a passivated silicon nanoparticle composition displaying discrete optical transitions.07-14-2011
20110182946Formation of Nanostructured Particles of Poorly Water Soluble Drugs and Recovery by Mechanical Techniques - The present invention provides a composition and method of forming an amorphous drug-loaded particle by forming one or more amorphous drug-loaded nanoparticles comprising one or more active agents stabilized by one or more polymers, desolvating the one or more amorphous drug-loaded nanoparticles to form one or more flocculated amorphous drug-loaded nanoparticles, filtering the one or more flocculated amorphous drug-loaded nanoparticles and drying the one or more flocculated amorphous drug-loaded nanoparticles to form amorphous drug-loaded particles.07-28-2011
20110198101COMPOSITIONS FOR OIL RECOVERY AND METHODS OF THEIR USE - Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO08-18-2011

Patent applications by Keith P. Johnston, Austin, TX US