Patents Assigned to Particle Science
  • Publication number: 20220125715
    Abstract: 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: Application
    Filed: February 14, 2020
    Publication date: April 28, 2022
    Applicant: Particle Sciences Inc.
    Inventors: Jason L. McConnell, Mark A. Mitchnick, Bruce L. Frank, Onajite Okoh
  • Patent number: 10729715
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 4, 2020
    Assignee: Eyeon Particle Sciences LLC
    Inventors: Eugene Rex Cooper, David Maxwell Kleinman, Andrew Loxley, Mark A. Mitchnick
  • Patent number: 9884074
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 6, 2018
    Assignee: Eyeon Particle Sciences LLC
    Inventors: Eugene Rex Cooper, David Maxwell Kleinman, Andrew Loxley, Mark A. Mitchnick
  • Patent number: 9295693
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: March 29, 2016
    Assignee: Eyeon Particle Sciences LLC
    Inventors: Eugene Rex Cooper, David Maxwell Kleinman, Andrew Loxley, Mark Mitchnick
  • Patent number: 9274106
    Abstract: 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: Grant
    Filed: April 4, 2008
    Date of Patent: March 1, 2016
    Assignee: Particle Sciences, Inc.
    Inventors: Mark Mitchnick, Andrew Loxley, David Fairhurst, Peter Wagner
  • Patent number: 9005596
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: April 14, 2015
    Assignee: Eyeon Particle Sciences LLC
    Inventors: Eugene Rex Cooper, David Maxwell Kleinman, Andrew Loxley, Mark Mitchnick
  • Patent number: 8802075
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: August 12, 2014
    Assignee: Eyeon Particle Sciences LLC
    Inventors: Eugene R. Cooper, David M. Kleinman, Andrew Loxley, Mark Mitchnick
  • Patent number: 8540969
    Abstract: 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: Grant
    Filed: April 18, 2008
    Date of Patent: September 24, 2013
    Assignee: Particle Sciences, Inc.
    Inventors: Andrew Loxley, Ismar Dizdarevic, Mark Mitchnick
  • Publication number: 20100226963
    Abstract: The invention contemplates a copolymer which is a graft or block copolymer useful to change wettability and surface characteristics of biological surfaces. Methods for use of these formulations and coatings to change wettability and sterically stabilize, and lubricate biological surfaces in a subject, for example, in the treatment of dry eye syndrome, and to prevent adherence of unwanted proteins, for example in the treatment of contact lens intolerance, are provided.
    Type: Application
    Filed: February 18, 2010
    Publication date: September 9, 2010
    Applicant: Eyeon Particle Sciences LLC
    Inventors: Eugene R. Cooper, David M. Kleinman, Andrew Loxley, Mark Mitchnick
  • Patent number: 7419527
    Abstract: 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: Grant
    Filed: May 8, 2003
    Date of Patent: September 2, 2008
    Assignee: Particle Sciences, Inc.
    Inventors: Garry Gwozdz, Mark Mitchnick, David Fairhurst
  • Publication number: 20040221682
    Abstract: 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: Application
    Filed: May 8, 2003
    Publication date: November 11, 2004
    Applicant: Particle Sciences, Inc.
    Inventors: Garry Gwozdz, Mark Mitchnick, David Fairhurst
  • Patent number: 6170342
    Abstract: The SPIRAL SAMPLER is a sampler for airborne particles. The spiral groove in the sampler allows for sticky or liquid particles as well as solid or bouncy particles of any given aerodynamic diameter to be sampled with the same efficiency. The SPIRAL SAMPLER does not require any oil or grease, which may become dislodged during operation and contaminate the particle deposit. By varying the dimensions of the inlet tube and the spiral groove, as well as the number of turns of the spiral, samplers may be made for sampling at any desired flow rate and with chosen particle size cutoffs. The SPIRAL SAMPLER may be scaled to any size, from personal to an area sampler. For sampling in areas with high loadings of large particles, a particle trap may be used to effectively and compactly separate oversized particles which would adversely affect the sampler operator.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: January 9, 2001
    Assignees: Particle Science, Aerosol Dynamics Inc.
    Inventor: Walter John