Patents by Inventor David A. Marsh

David A. Marsh 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).

  • Publication number: 20240423922
    Abstract: A composite drug delivery material may be injected into an eye of a human being or mammal to provide sustained delivery of the drug. A composite drug delivery material may include a plurality of microparticles dispersed in a media composition. The microparticles may contain a drug and a coating comprising a bioerodible material or a biodegradable material, and the media composition includes the drug dispersed in a depot-forming material. The media composition may gel or solidify upon injection into the eye.
    Type: Application
    Filed: April 1, 2024
    Publication date: December 26, 2024
    Inventors: David A. Marsh, Hongwen M. Rivers
  • Publication number: 20240226022
    Abstract: A composite drug delivery material may be injected into an eye of a human being or mammal to provide sustained delivery of the drug. A composite drug delivery material may include a plurality of microparticles dispersed in a media composition. The microparticles may contain a drug and a coating comprising a bioerodible material or a biodegradable material, and the media composition includes the drug dispersed in a depot-forming material. The media composition may gel or solidify upon injection into the eye.
    Type: Application
    Filed: August 21, 2023
    Publication date: July 11, 2024
    Inventors: David A. Marsh, Hongwen M. Rivers
  • Publication number: 20230390212
    Abstract: A composite drug delivery material may be injected into an eye of a human being or mammal to provide sustained delivery of the drug. A composite drug delivery material may include a plurality of microparticles dispersed in a media composition. The microparticles may contain a drug and a coating comprising a bioerodible material or a biodegradable material, and the media composition includes the drug dispersed in a depot-forming material. The media composition may gel or solidify upon injection into the eye.
    Type: Application
    Filed: December 27, 2022
    Publication date: December 7, 2023
    Inventors: David A. Marsh, Hongwen M. Rivers
  • Publication number: 20200297650
    Abstract: A composite drug delivery material may be injected into an eye of a human being or mammal to provide sustained delivery of the drug. A composite drug delivery material may include a plurality of microparticles dispersed in a media composition. The microparticles may contain a drug and a coating comprising a bioerodible material or a biodegradable material, and the media composition includes the drug dispersed in a depot-forming material. The media composition may gel or solidify upon injection into the eye.
    Type: Application
    Filed: December 19, 2019
    Publication date: September 24, 2020
    Inventors: David A. Marsh, Hongwen M. Rivers
  • Publication number: 20180207230
    Abstract: Disclosed herein are autoclavable formulations of cyclosporin A Form 2, methods of making such formulations, and methods of treating diseases of the eye with such formulations.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 26, 2018
    Inventors: Wendy M. Blanda, Hongwen Ma Rivers, David A. Marsh, Michelle Luu
  • Patent number: 9919028
    Abstract: Disclosed herein are autoclavable formulations of cyclosporin A Form 2, methods of making such formulations, and methods of treating diseases of the eye with such formulations.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: March 20, 2018
    Assignee: Allergan, Inc.
    Inventors: Wendy M. Blanda, Hongwen Ma Rivers, David A. Marsh, Michelle Luu
  • Publication number: 20160271207
    Abstract: Disclosed herein are autoclavable formulations of cyclosporin A Form 2, methods of making such formulations, and methods of treating diseases of the eye with such formulations.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: Wendy M. Blanda, Hongwen Ma Rivers, David A. Marsh, Michelle Luu
  • Publication number: 20130123194
    Abstract: Disclosed herein are autoclavable formulations of cyclosporin A Form 2, methods of making such formulations, and methods of treating diseases of the eye with such formulations.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 16, 2013
    Applicant: ALLERGAN, INC.
    Inventors: Wendy M. Blanda, Hongwen M. Rivers, David A. Marsh, Michelle Luu
  • Publication number: 20100226962
    Abstract: The present invention is directed to an ophthalmic peri-corneal drug delivery device. The device includes a core of matrix material and therapeutic agent and a coating over the core. One or more opening[s] extend through the coating to provide for release of the drug to the eye. Moreover, the device is designed to lay atop the external surface of the eye.
    Type: Application
    Filed: February 25, 2010
    Publication date: September 9, 2010
    Inventors: Theron R. Rodstrom, David A. Marsh, Alan L. Weiner, Larry Smith, II, Martin B. Wax
  • Patent number: 5603897
    Abstract: A method of treating contact lenses comprising the use of an iodine-chromophore to indicate neutralization of oxidative disinfectants.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: February 18, 1997
    Assignee: Bausch & Lomb Incorporated
    Inventors: David J. Heiler, Matthew S. Jonasse, David A. Marsh, Jill S. Rogalskyj
  • Patent number: 5451303
    Abstract: A composition and method for cleaning and disinfecting of contact lenses that employ an electrical field applied to a lens that causes contaminating deposits to migrate therefrom is described. The composition of the invention includes a pair of component materials having different electrochemical potentials wherein the materials are substantially contained in a form wherein each material remains sufficiently physically separated when in contact with opposite sides of the lens such that the difference in electrochemical potential between the two materials is sufficient to cause charged contaminating deposits to migrate from the lens. The method of the invention requires placing a contaminated lens between a pair of component materials having different electrochemical potentials wherein physical separation is maintained, preferably, by including one of the components in a gel while the other component is in solution or another gel.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: September 19, 1995
    Assignee: Bausch & Lomb Incorporated
    Inventors: David J. Heiler, David A. Marsh, Matthew S. Jonasse, Rick Panicucci
  • Patent number: 5364637
    Abstract: Contact lenses are cleaned by contacting the lenses with a composition containing an effective amount of one or more cyclodextrins. The compositions can also be employed at elevated temperatures or may contain suitable antimicrobial agents in order to simultaneously clean and disinfect the lenses.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: November 15, 1994
    Assignee: Bausch & Lomb Incorporated
    Inventors: Nimai C. De, David J. Heiler, David A. Marsh, Suzanne F. Groemminger
  • Patent number: 4235893
    Abstract: This invention relates to ester derivatives of 4-hydroxy-4-androstene-3,17-dione (4-OH-4-A), including the acetate, heptanoate, dodecanoate, hemisuccinate and benzoate esters of 4-OH-4-A.This invention also relates to a method of using the esters in the inhibition of estrogen biosynthesis.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: November 25, 1980
    Inventors: Angela M. H. Brodie, Harry J. Brodie, David A. Marsh