Patents by Inventor James N. Chang

James N. Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8933120
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: January 13, 2015
    Assignee: Allergan, Inc.
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
  • Patent number: 8933127
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: January 13, 2015
    Assignee: Allergan, Inc.
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
  • Publication number: 20140364494
    Abstract: Biocompatible implants comprising a cyclic lipid therapeutic agent are made using a low temperature melt extrusion process. The implants are suitable for intraocular use to treat an ocular condition.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Inventors: Lon T. Spada, James N. Chang, Michelle H. Luu
  • Patent number: 8906861
    Abstract: A composition is described herein comprising cyclosporin A, polysorbate 80, a polyoxyethylene stearate, and an oil; wherein the composition is an emulsion which is ophthalmically acceptable. Methods of treating diseases or conditions using said compositions, and medicaments related thereto, are also disclosed herein.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: December 9, 2014
    Assignee: Allergan, Inc.
    Inventors: Walter L. Tien, Richard S. Graham, James N. Chang
  • Publication number: 20140322295
    Abstract: Biocompatible intraocular implants include a steroid and an auxiliary agent, where the auxiliary agent is present in an amount sufficient to lessen the severity of at least one side effect compared to the use of an otherwise identical implant lacking said auxiliary agent. The steroid and the auxiliary agent may be present on the same intraocular implant or on different implants. The steroid and auxiliary agent may be associated with a biodegradable polymer matrix, such as a matrix of a two biodegradable polymers. Or, the steroid may be associated with a polymeric coating having one or more openings effective to permit the steroid to be released into an external environment. The implants containing the steroid and an auxiliary agent may be placed in an eye to treat one or more ocular conditions while reducing the side effects otherwise accompanying steroid use.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventors: Glenn T. Huang, Thierry Nivaggioli, Lon T. Spada, Hiroshi Sugimoto, Wendy M. Blanda, James N. Chang, Orest Olejnik
  • Publication number: 20140302007
    Abstract: Botulinum neurotoxin formulated with a hyaluronic acid carrier with increased residency time of the botulinum toxin at a subdermal location and fewer botulinum toxin induced complications or side effects.
    Type: Application
    Filed: May 8, 2012
    Publication date: October 9, 2014
    Applicant: ALLERGAN, INC.
    Inventors: Wendy M. Blanda, Rober K. Aoki, Terrence J. Hunt, Patrick M. Hughes, James N. Chang, Scott M. Whitcup, Michael R. Robinson
  • Patent number: 8846073
    Abstract: Biocompatible implants comprising a cyclic lipid therapeutic agent are made using a low temperature melt extrusion process. The implants are suitable for intraocular use to treat an ocular condition.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: September 30, 2014
    Assignee: Allergan, Inc.
    Inventors: Lon T. Spada, James N. Chang, Michelle Luu
  • Publication number: 20140206626
    Abstract: Methods of treating an eye of a human or animal include administering to an eye of a human or animal a composition in the form of an emulsion including water, a hydrophobic component and a cyclosporin component in a therapeutically effective amount of less than 0.1% by weight of the composition. The weight ratio of the cyclosporin exponent to the hydrophobic component is less than 0.8.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: Allergan, Inc.
    Inventors: Andrew Acheampong, Diane D. Tang-Liu, James N. Chang, David F. Power
  • Patent number: 8772338
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 8, 2014
    Assignee: Allergan, Inc.
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
  • Patent number: 8771722
    Abstract: Biocompatible intraocular implants include a steroid and an auxiliary agent, where the auxiliary agent is present in an amount sufficient to lessen the severity of at least one side effect compared to the use of an otherwise identical implant lacking said auxiliary agent. The steroid and the auxiliary agent may be present on the same intraocular implant or on different implants. The steroid and auxiliary agent may be associated with a biodegradable polymer matrix, such as a matrix of a two biodegradable polymers. Or, the steroid may be associated with a polymeric coating having one or more openings effective to permit the steroid to be released into an external environment. The implants containing the steroid and an auxiliary agent may be placed in an eye to treat one or more ocular conditions while reducing the side effects otherwise accompanying steroid use.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: July 8, 2014
    Assignee: Allergan, Inc.
    Inventors: Glenn T. Huang, Thierry Nivaggioli, Lon T. Spada, Hiroshi Sugimoto, Wendy M. Blanda, James N. Chang, Orest Olejnik
  • Publication number: 20140155842
    Abstract: Apparatus and methods for implanting ocular implants in eyes are provided which include a bent cannula having a lumen extending therethrough, the lumen having a length and a diameter and being configured to receive an ocular implant. The ocular implant is made up of a plurality of substantially uniformly sized particles, preferably a plurality of uniformly sized microspheres, arranged in a one-by-one array along the length of the lumen. The apparatus further comprises a mechanism for delivering the implant through the distal end of the lumen and into the eye, preferably without the use of a liquid or gel carrier medium located in the lumen along with the implant.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Inventor: James N. Chang
  • Publication number: 20140100287
    Abstract: A composition comprising from 0.005% to 0.02% bimatoprost by weight and from 100 ppm to 250 ppm benzalkonium chloride, wherein said composition is an aqueous liquid which is formulated for ophthalmic administration is disclosed herein. A method which is useful in treating glaucoma or ocular hypertension related thereto is also disclosed herein.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 10, 2014
    Applicant: Allergan, Inc.
    Inventors: Chin-Ming Chang, James N. Chang, Rhett M. Schiffman, R. Scott Jordan, Joan-En Chang-Lin
  • Patent number: 8685930
    Abstract: Methods of treating an eye of a human or animal include administering to an eye of a human or animal a composition in the form of an emulsion including water, a hydrophobic component and a cyclosporin component in a therapeutically effective amount of less than 0.1% by weight of the composition. The weight ratio of the cyclosporin component to the hydrophobic component is less than 0.8.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: April 1, 2014
    Assignee: Allergan, Inc.
    Inventors: Andrew Acheampong, Diane D. Tang-Liu, James N. Chang, David F. Power
  • Patent number: 8668676
    Abstract: Apparatus and methods for implanting ocular implants in eyes are provided which include a bent cannula having a lumen extending therethrough, the lumen having a length and a diameter and being configured to receive an ocular implant. The ocular implant is made up of a plurality of substantially uniformly sized particles, preferably a plurality of uniformly sized microspheres, arranged in a one-by-one array along the length of the lumen. The apparatus further comprises a mechanism for delivering the implant through the distal end of the lumen and into the eye, preferably without the use of a liquid or gel carrier medium located in the lumen along with the implant.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: March 11, 2014
    Assignee: Allergan, Inc.
    Inventor: James N. Chang
  • Publication number: 20140057855
    Abstract: A composition comprising from about 0.001% to about 0.4% cyclosporin A, a surfactant, and an oil having a specific gravity from 0.8 to 0.95 is disclosed herein.
    Type: Application
    Filed: November 4, 2013
    Publication date: February 27, 2014
    Applicant: ALLERGAN, INC.
    Inventors: James N. Chang, Orest Olejnik, Bruce A. Firestone
  • Publication number: 20140051671
    Abstract: Compositions, and methods of using such compositions, useful for injection into the posterior segments of human or animal eyes are provided. Such compositions include corticosteroid component-containing particles present in a therapeutically effective amount, a viscosity inducing component, and an aqueous carrier component. The compositions have viscosities of at least about 10 cps or about 100 cps at a shear rate of 0.1/second. In a preferred embodiment, the viscosity is in the range of from about 140,000 cps to about 300,000 cps. The compositions advantageously suspend the particles for prolonged periods of time.
    Type: Application
    Filed: October 28, 2013
    Publication date: February 20, 2014
    Applicant: Allergan, Inc.
    Inventors: Robert T. Lyons, James N. Chang, John T. Trogden, Scott Whitcup
  • Publication number: 20140045772
    Abstract: A composition is disclosed herein comprising from about 0.001% to about 0.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: ALLERGAN, INC.
    Inventors: James N. Chang, Orest Olejnik, Bruce A. Firestone
  • Patent number: 8648048
    Abstract: Methods of treating an eye of a human or animal include administering to an eye of a human or animal a composition in the form of an emulsion including water, a hydrophobic component and a cyclosporin component in a therapeutically effective amount of less than 0.1% by weight of the composition. The weight ratio of the cyclosporin component to the hydrophobic component is less than 0.8.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: February 11, 2014
    Assignee: Allergan, Inc.
    Inventors: Andrew Acheampong, Diane D. Tang-Liu, James N. Chang, David F. Power
  • Publication number: 20140038972
    Abstract: Biocompatible intraocular implants include an alpha-2 adrenergic receptor agonist and a polymer associated with the alpha-2 adrenergic receptor agonist to facilitate release of the alpha-2 adrenergic receptor agonist into an eye for an extended period of time. The alpha-2 adrenergic receptor agonist may be associated with a biodegradable polymer matrix, such as a matrix of a two biodegradable polymers. The implants can be placed in an eye to treat one or more ocular conditions, such as an ocular vasculopathy or glaucoma, including reduction of an elevated intraocular pressure.
    Type: Application
    Filed: August 30, 2013
    Publication date: February 6, 2014
    Applicant: Allergan, Inc.
    Inventors: James N. Chang, Lon T. Spada, Wendy M. Blanda, Werhner C. Orilla, James A. Burke, Patrick M. Hughes
  • Patent number: 8642067
    Abstract: Anti-angiogenesis compositions, and methods of using such compositions, useful for injection into the vitreous of human eyes are provided. Such compositions can include TKI component solutions or particles present in a therapeutically effective amount, a viscosity inducing component, and an aqueous carrier component. The compositions have viscosities at about 25° C. of at least about 10 cps or about 100 cps at a shear rate of 0.1/second. In a preferred embodiment, the viscosity at 25° C. is in the range of from about 80,000 cps to about 300,000 cps.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: February 4, 2014
    Assignee: Allergen, Inc.
    Inventors: John T. Trogden, Robert T. Lyons, James N. Chang, Scott M. Whitcup