Patents by Inventor Walter J. Stark

Walter J. Stark 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).

  • Uni-port hybrid gauge surgical apparatuses and methods
    Patent number: 10376414
    Abstract: Systems, apparatuses, and methods include a surgical apparatus with a handle for grasping by a user and a multi-function surgical portion extending therefrom. The multi-function surgical portion may include an illuminator portion arranged to provide illumination to a surgical region of a patient during a surgical procedure, and tissue-treating portion coaxially aligned with the illuminator portion.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: August 13, 2019
    Assignee: Novartis AG
    Inventors: Paul R. Hallen, Walter J. Stark, III
  • Glucocorticoid-loaded nanoparticles for prevention of corneal allograft rejection and neovascularization
    Patent number: 10195212
    Abstract: Particles encapsulating a glucocorticoid such as dexamethasone sodium phosphate (DSP) into a matrix such as biodegradable poly(lactic-coglycolic acid) (PLGA) which is densely coated with hydrophilic polymer such as PEG or PLURONIC® F127, exhibit sustained release of DSP for up to 7 days in vitro. These nanoparticles can be used to prevent corneal graft rejection or corneal neovascularization.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: February 5, 2019
    Assignee: The Johns Hopkins University
    Inventors: Justin Scot Hanes, Qing Pan, Qingguo Xu, Nicholas J. Boylan, Walter J. Stark, Bing Wang, Lixia Luo
  • UNI-PORT HYBRID GAUGE SURGICAL APPARATUSES AND METHODS
    Publication number: 20170165114
    Abstract: Systems, apparatuses, and methods include a surgical apparatus with a handle for grasping by a user and a multi-function surgical portion extending therefrom. The multi-function surgical portion may include an illuminator portion arranged to provide illumination to a surgical region of a patient during a surgical procedure, and tissue-treating portion coaxially aligned with the illuminator portion.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 15, 2017
    Inventors: Paul R. Hallen, Walter J. Stark, III
  • GLUCOCORTICOID-LOADED NANOPARTICLES FOR PREVENTION OF CORNEAL ALLOGRAFT REJECTION AND NEOVASCULARIZATION
    Publication number: 20170157147
    Abstract: Particles encapsulating a glucocorticoid such as dexamethasone sodium phosphate (DSP) into a matrix such as biodegradable poly(lactic-coglycolic acid) (PLGA) which is densely coated with hydrophilic polymer such as PEG or PLURONIC® F127, exhibit sustained release of DSP for up to 7 days in vitro. These nanoparticles can be used to prevent corneal graft rejection or corneal neovascularization.
    Type: Application
    Filed: August 3, 2015
    Publication date: June 8, 2017
    Applicant: The Johns Hopkins University
    Inventors: Justin Scot Hanes, Qing Pan, Qingguo Xu, Nicholas J. Boylan, Walter J. Stark, Bing Wang, Lixia Luo
  • Surgical refractive laser calibration device
    Patent number: 5261822
    Abstract: A phantom cornea for calibrating surgical lasers is formed by superimposition of thin-films of alternating colors. After ablation by a laser beam, the resulting spherical cavity appears as a pattern of nested circles whose concentricity and spacing reflect the alignment and intensity of the laser beam. These patterns can be visually or instrumentally analyzed to determine the proper setting of the laser. The calibration cornea can be planar, or arcuate to mimic the natural cornea. The calibration cornea may be mounted in a phantom eyeball including a removable iris of small diameter which constitutes a convenient target for the alignment of the laser beam.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: November 16, 1993
    Assignee: Iatrotech, Inc.
    Inventors: Deborah K. Hall, Erik Rencs, Walter J. Stark