Patents by Inventor Hak Choy

Hak Choy 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: 20220355128
    Abstract: In one aspect, the present disclosure relates to a method of adaptive treatment of a subject with a tumor. The method may include administering a first pulse dose of radiation to a tumor within a subject; administering a second pulse dose of radiation to the tumor, wherein the second pulse dose is administered after an observation period, the observation period having a duration of at least 7 days; and concurrently treating the subject with an immunotherapy.
    Type: Application
    Filed: September 14, 2020
    Publication date: November 10, 2022
    Applicant: The Board of Regents of The University of Texas System
    Inventors: Robert Timmerman, Debabrata Saha, Michael D. Story, Hak Choy, Steve Bin Jiang
  • Publication number: 20210031055
    Abstract: Various examples of methods, systems, apparatus and devices are provided for MRI adaptation for radiotherapy machines. In one example, a system for MRI-guided radiotherapy can include a mounting ring and superconducting magnets. The mounting ring can be installed on a gantry of a LINAC to rotate about an isocenter of the LINAC moving with the gantry. The first and second superconducting magnet can be positioned substantially parallel to each other at a separation distance with the centers substantially aligned. The first and second superconducting magnets can provide a main magnetic field within a region of interest located between the first and second superconducting magnets. The superconducting magnets can have an aperture positioned at the center of each magnet and can allow a radiotherapy beam emitting from the gantry head to pass through the apertures. In another example, superconducting magnets can be installed at opposite ends of a LINAC gantry.
    Type: Application
    Filed: April 11, 2019
    Publication date: February 4, 2021
    Inventors: Steve Bin Jiang, Xun Jia, Ge Wang, Hak Choy, Nima Hassan-Rezaeian, Chenyang Shen
  • Patent number: 10660586
    Abstract: Radiation therapy systems and their components, including secondary radiation shields. At least some versions of the disclosed systems combine a radiation delivery device, a primary radiation shielding device, and a secondary shielding layer into an integrated, modular unit. This is accomplished by using a small direct beam shield capable of blocking a primary beam from a radiation delivery device. In turn, a thinner shielding layer can be used to surround the radiation delivery device and primary shielding device, enabling a single modular unit to be delivered to an installation site. In some embodiments, a bed may be disposed within the secondary shielding layer. In some embodiments, the system is configured to provide up to 4-pi (4?) steradians of radiation coverage to the bed from the radiation delivery device.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: May 26, 2020
    Assignee: The Board of Regents of the University of Texas Systems
    Inventors: Hak Choy, Steve Jiang, Robert Timmerman, Arnold Pompos
  • Patent number: 10660587
    Abstract: Radiation therapy systems and their components, including secondary radiation shields. At least some versions of the disclosed systems combine a radiation delivery device, a primary radiation shielding device, and a secondary shielding layer into an integrated, modular unit. This is accomplished by using a small direct beam shield capable of blocking a primary beam from a radiation delivery device. In turn, a thinner shielding layer can be used to surround the radiation delivery device and primary shielding device, enabling a single modular unit to be delivered to an installation site. In some embodiments, a bed may be disposed within the secondary shielding layer. In some embodiments, the system is configured to provide up to 4-pi (4?) steradians of radiation coverage to the bed from the radiation delivery device.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: May 26, 2020
    Assignee: The Board of Regents of the University of Texas System
    Inventors: Hak Choy, Steve Jiang, Robert Timmerman, Arnold Pompos
  • Patent number: 10660585
    Abstract: Radiation therapy systems and their components, including secondary radiation shields. At least some versions of the disclosed systems combine a radiation delivery device, a primary radiation shielding device, and a secondary shielding layer into an integrated, modular unit. This is accomplished by using a small direct beam shield capable of blocking a primary beam from a radiation delivery device. In turn, a thinner shielding layer can be used to surround the radiation delivery device and primary shielding device, enabling a single modular unit to be delivered to an installation site. In some embodiments, a bed may be disposed within the secondary shielding layer. In some embodiments, the system is configured to provide up to 4-pi (4?) steradians of radiation coverage to the bed from the radiation delivery device.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: May 26, 2020
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Hak Choy, Steve Jiang, Robert Timmerman, Arnold Pompos
  • Publication number: 20190365337
    Abstract: Radiation therapy systems and their components, including secondary radiation shields. At least some versions of the disclosed systems combine a radiation delivery device, a primary radiation shielding device, and a secondary shielding layer into an integrated, modular unit. This is accomplished by using a small direct beam shield capable of blocking a primary beam from a radiation delivery device. In turn, a thinner shielding layer can be used to surround the radiation delivery device and primary shielding device, enabling a single modular unit to be delivered to an installation site. In some embodiments, a bed may be disposed within the secondary shielding layer. In some embodiments, the system is configured to provide up to 4-pi (4?) steradians of radiation coverage to the bed from the radiation delivery device.
    Type: Application
    Filed: June 17, 2019
    Publication date: December 5, 2019
    Applicant: The Board of Regents of the University of Texas System
    Inventors: Hak Choy, Steve Jiang, Robert Timmerman, Arnold Pompos
  • Publication number: 20190307406
    Abstract: Radiation therapy systems and their components, including secondary radiation shields. At least some versions of the disclosed systems combine a radiation delivery device, a primary radiation shielding device, and a secondary shielding layer into an integrated, modular unit. This is accomplished by using a small direct beam shield capable of blocking a primary beam from a radiation delivery device. In turn, a thinner shielding layer can be used to surround the radiation delivery device and primary shielding device, enabling a single modular unit to be delivered to an installation site. In some embodiments, a bed may be disposed within the secondary shielding layer. In some embodiments, the system is configured to provide up to 4-pi (4?) steradians of radiation coverage to the bed from the radiation delivery device.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 10, 2019
    Applicant: The Board of Regents of the University of Texas System
    Inventors: Hak CHOY, Steve Jiang, Robert Timmerman, Arnold Pompos
  • Patent number: 9767764
    Abstract: A method for determining the screen brightness in the electronic device includes determining whether a flip cover opens or closes a screen when the screen display event occurs, determining a first brightness value for a full screen display mode when the flip cover is opened, and determining a second brightens value for a flip covered window display. Other embodiments including an apparatus for determining the screen brightness are also disclosed.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: September 19, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hak Choy, C. H. Lee, Seong-Joon Jeon
  • Publication number: 20160095558
    Abstract: Radiation therapy systems and their components, including secondary radiation shields. At least some versions of the disclosed systems combine a radiation delivery device, a primary radiation shielding device, and a secondary shielding layer into an integrated, modular unit. This is accomplished by using a small direct beam shield capable of blocking a primary beam from a radiation delivery device. In turn, a thinner shielding layer can be used to surround the radiation delivery device and primary shielding device, enabling a single modular unit to be delivered to an installation site. In some embodiments, a bed may be disposed within the secondary shielding layer. In some embodiments, the system is configured to provide up to 4-pi (4?) steradians of radiation coverage to the bed from the radiation delivery device.
    Type: Application
    Filed: April 16, 2015
    Publication date: April 7, 2016
    Inventors: Hak CHOY, Steve JIANG, Robert TIMMERMAN, Arnold POMPOS
  • Publication number: 20150062104
    Abstract: A method for determining the screen brightness in the electronic device includes determining whether a flip cover opens or closes a screen when the screen display event occurs, determining a first brightness value for a full screen display mode when the flip cover is opened, and determining a second brightens value for a flip covered window display. Other embodiments including an apparatus for determining the screen brightness are also disclosed.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Sung-Hak Choy, C.H. Lee, Seong-Joon Jeon
  • Patent number: 6281223
    Abstract: Disclosed is a method of enhancing the therapeutic effect of radiation in a host being treated for cancer including coadministering the radiation and an orally dosed camptothecin derivative to the host being treated for cancer. Also disclosed is a method of enhancing the therapeutic effect of radiation in a host being treated for cancer including orally dosing the host being treated for cancer with a camptothecin derivative; and administering radiation at a point when a serum concentration of the camptothecin derivative in the host being treated for cancer reaches about 50% or more of the maximum concentration achieved by the oral dose.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: August 28, 2001
    Assignee: SuperGen, Inc.
    Inventors: Hak Choy, Luigi Lenaz