Patents Assigned to Particle Sciences, Inc.
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Publication number: 20220125715Abstract: A delivery device for active pharmaceutical agents and made up of a hollow polymeric outer shape forming at least one closed internal cavity or compartment and containing a solid core of one or more active pharmaceutical agents and one or more excipients substantially unattached to the hollow polymeric outer shape is provided. Also provided are methods for production and use of this device.Type: ApplicationFiled: February 14, 2020Publication date: April 28, 2022Applicant: Particle Sciences Inc.Inventors: Jason L. McConnell, Mark A. Mitchnick, Bruce L. Frank, Onajite Okoh
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Patent number: 11246831Abstract: Aqueous dispersions of chemically and physically stable particles for use in delivery of active pharmaceutical ingredients and processes for their production and use to enhance a biological response to an active pharmaceutical ingredient and prophylactically or therapeutically treat a subject are provided. Vaccines, wherein the active pharmaceutical ingredient is a solution of subunit vaccine antigen mixed with a colloidal dispersion of electrically charged particles and use of such vaccines in immunization are also provided.Type: GrantFiled: March 31, 2008Date of Patent: February 15, 2022Assignee: PARTICLE SCIENCES, INC.Inventors: Andrew Loxley, Mark Mitchnick, David Fairhurst, Christy Ann Eatmon
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Patent number: 10888625Abstract: A targeted drug delivery complex containing a particle, a targeting moiety electrostatically attached to the particle, and an active pharmaceutical ingredient attached to or dispersed or dissolved within the particle is provided. Also provided are pharmaceutical formulations containing a plurality of the complexes as well as methods for use in targeting an active pharmaceutical ingredient to a selected cell or tissue and production of such formulations.Type: GrantFiled: October 29, 2013Date of Patent: January 12, 2021Assignee: PARTICLE SCIENCES, INC.Inventors: Mark Mitchnick, Garry Gwozdz, Andrew Loxley
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Publication number: 20190254974Abstract: Delivery devices of a degradable or nondegradable biocompatible matrix with one or more encapsulated active pharmaceutical ingredients or one or more particle-bound active pharmaceutical ingredients dispersed in the matrix are provided. Also provided are methods for delivering an active pharmaceutical ingredient to a subject with these delivery devices. Modified vaginal rings are also provided as well as surface coatings for delivery devices which minimize bio-interaction of the coated delivery devices.Type: ApplicationFiled: March 4, 2019Publication date: August 22, 2019Applicant: PARTICLE SCIENCES, INC.Inventors: David FAIRHURST, Garry Thomas GWOZDZ, Andrew LOXLEY, Mark MITCHNICK, Abhijit GOKHALE
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Patent number: 10258571Abstract: Delivery devices of a degradable or nondegradable biocompatible matrix with one or more encapsulated active pharmaceutical ingredients or one or more particle-bound active pharmaceutical ingredients dispersed in the matrix are provided. Also provided are methods for delivering an active pharmaceutical ingredient to a subject with these delivery devices. Modified vaginal rings are also provided as well as surface coatings for delivery devices which minimize bio-interaction of the coated delivery devices.Type: GrantFiled: February 12, 2008Date of Patent: April 16, 2019Assignee: PARTICLE SCIENCES, INC.Inventors: David Fairhurst, Garry Thomas Gwozdz, Mark Mitchnick, Abhijit Gokhale, Andrew Loxley
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Patent number: 9274106Abstract: Methods, devices and arrays for measuring a change in zeta-potential of a surface indicative of a binding event are provided. Pharmacologically active compounds and delivery systems for active pharmaceutical ingredients determined to be pharmacologically active or optimized for pharmacological activity or determined to be useful for delivery of the active pharmaceutical ingredient to a target via measurement of a change in zeta-potential of the compound, ingredient or delivery system are also provided.Type: GrantFiled: April 4, 2008Date of Patent: March 1, 2016Assignee: Particle Sciences, Inc.Inventors: Mark Mitchnick, Andrew Loxley, David Fairhurst, Peter Wagner
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Patent number: 8540969Abstract: Aerosols containing a plurality of aqueous droplets, each droplet containing on average at least one essentially-neutral particle sized to fit within the droplet are provided. Aerosols wherein an active pharmaceutical ingredient is attached to, or otherwise incorporated in the essentially neutral particles are also provided. Methods for administering an active pharmaceutical ingredient to a subject in need thereof via inhalation of these aerosols, preferably via nebulizer, are also provided.Type: GrantFiled: April 18, 2008Date of Patent: September 24, 2013Assignee: Particle Sciences, Inc.Inventors: Andrew Loxley, Ismar Dizdarevic, Mark Mitchnick
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Patent number: 7419527Abstract: Novel powders or particles are formed by associating them with relatively small proportions of hydrolysable liquid material. The resulting particle/liquid mass is placed in a mold and sintered under conditions of heat and pressure that enables at least some of the hydrolysable liquid to react within the sintered mass. The sintered mass displays a controllable range of properties such as increased density, increased tensile strength, and improved natural polish finish. The hydrolysable liquid may partially hydrolyze and/or react with the powders and particles, but the liquid is not completely (not 100%) reduced to an inorganic oxide prior to introduction to the mold and performance of the sintering process.Type: GrantFiled: May 8, 2003Date of Patent: September 2, 2008Assignee: Particle Sciences, Inc.Inventors: Garry Gwozdz, Mark Mitchnick, David Fairhurst
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Publication number: 20040221682Abstract: Novel powders or particles are formed by associating them with relatively small proportions of hydrolysable liquid material. The resulting particle/liquid mass is placed in a mold and sintered under conditions of heat and pressure that enables at least some of the hydrolysable liquid to react within the sintered mass. The sintered mass displays a controllable range of properties such as increased density, increased tensile strength, and improved natural polish finish. The hydrolysable liquid may partially hydrolyze and/or react with the powders and particles, but the liquid is not completely (not 100%) reduced to an inorganic oxide prior to introduction to the mold and performance of the sintering process.Type: ApplicationFiled: May 8, 2003Publication date: November 11, 2004Applicant: Particle Sciences, Inc.Inventors: Garry Gwozdz, Mark Mitchnick, David Fairhurst