Patents by Inventor Leslie Butler

Leslie Butler 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).

  • Phase contrast X-ray interferometry
    Patent number: 11488740
    Abstract: A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: November 1, 2022
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Joyoni Dey, Narayan Bhusal, Leslie Butler, Jonathan P. Dowling, Kyungmin Ham, Varshni Singh
  • PHASE CONTRAST X-RAY INTERFEROMETRY
    Publication number: 20210065924
    Abstract: A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Joyoni Dey, Narayan Bhusal, Leslie Butler, Jonathan P. Dowling, Kyungmin Ham, Varshni Singh
  • Phase contrast X-ray interferometry
    Patent number: 10872708
    Abstract: A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: December 22, 2020
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Joyoni Dey, Narayan Bhusal, Leslie Butler, Jonathan P. Dowling, Kyungmin Ham, Varshni Singh
  • PHASE CONTRAST X-RAY INTERFEROMETRY
    Publication number: 20190027265
    Abstract: A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 24, 2019
    Applicant: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
    Inventors: Joyoni Dey, Narayan Bhusal, Leslie Butler, Jonathan P. Dowling, Kyungmin Ham, Varshni Singh
  • Wrist watch with race car motif
    Patent number: D449998
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: November 6, 2001
    Inventor: Leslie A Butler