Patents by Inventor Luis A. Echegoyen

Luis A. Echegoyen 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).

  • SINGLE NIR IRRADIATION TRIGGERED UPCONVERSION NANO SYSTEM FOR SYNERGISTIC PHOTODYNAMIC AND PHOTOTHERMAL CANCER THERAPY
    Publication number: 20220160892
    Abstract: A composition includes a photon upconversion nanoparticle coupled to a photosensitizer nanoparticle that can absorb light and convert tissue oxygen into reactive oxygen species. A low temperature hydrothermal method of making photon upconversion nanoparticles includes dispersing Yb(NO3)3, Y(NO3)3, and Er(NO3)3 in water to prepare a mixture; adding an ethylenediaminetetraacetic acid and NaF with sonication to make a solution; adjusting a pH of the solution to approximately 3.5 using HNO3 and NaOH; treating the solution hydrothermally at approximately 130° C. for approximately 4 hours; quenching to approximately 20° C.; collecting and washing the photon upconversion nanoparticles.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Inventors: XiuJun Li, Luis A. Echegoyen, Lei Ma
  • 1,3-dipolar [70]fulleropyrrolidinium iodide derivatives
    Patent number: 10358419
    Abstract: Certain embodiments are directed to C70 fullerene derivatives N—N-dimethyl [70]fulleropyrrolidinium iodide. Certain further embodiments are directed to ?, ? and ? isomer of N—N-dimethyl[70]fulleropyrrolidinium iodide.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: July 23, 2019
    Assignee: THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Luis A. Echegoyen, Manuel Llano, Edison A. Castro-Portillo, Zachary Martinez
  • 1,3-DIPOLAR [70]FULLEROPYRROLIDINIUM IODIDE DERIVATIVES
    Publication number: 20180037548
    Abstract: Certain embodiments are directed to C70 fullerene derivatives N-N-dimethyl [70]fulleropyrrolidinium iodide. Certain further embodiments are directed to ?, ? and ? isomer of N-N-dimethyl[70]fulleropyrrolidinium iodide.
    Type: Application
    Filed: March 10, 2016
    Publication date: February 8, 2018
    Applicant: THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Luis A. ECHEGOYEN, Manuel LLANO, Edison A. CASTRO-PORTILLO, Zachary MARTINEZ
  • [1-3]-thiazine-fulleropyrrolo derivatives of C60 and C70 as HIV-inhibitor agents
    Patent number: 9856272
    Abstract: Certain embodiments useful as HIV-inhibitor agents are directed to fullerene derivatives tetrahydro-1H—C60-fulleropyrrolo[1,2-c][1,3]thiazine salts (Formula I) or tetrahydro-1H—C70-fulleropyrrolo[1,2-c][1,3]thiazine salts (Formula II), while further embodiments are directed to ?, ?, ?, and/or ? isomer of tetrahydro-1H—C70-fulleropyrrolo[1,2-c][1,3]thiazine salt.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: January 2, 2018
    Assignee: THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Luis A. Echegoyen, Danisha M. Rivera-Nazario, Edison A. Castro Portillo, Zachary Martinez, Manuel Llano
  • [1-3]-THIAZINE-FULLEROPYRROLO DERIVATIVES OF C60 AND C70 AS HIV-INHIBITOR AGENTS
    Publication number: 20170197987
    Abstract: Certain embodiments are directed to fullerene derivatives tetrahydro-1H—C60-fulleropyrrolo[1,2-c][1,3]thiazine salts (Formula I) or tetrahydro-1H—C70-fulleropyrrolo[1,2-c][1,3]thiazine salts (Formula II). Certain further embodiments are directed to ?, ?, ?, and/or ? isomer of tetrahydro-1H—C70-fulleropyrrolo[1,2-c][1,3]thiazine salt.
    Type: Application
    Filed: November 4, 2016
    Publication date: July 13, 2017
    Applicant: THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Luis A. Echegoyen, Danisha M. Rivera-Nazario, Edison A. Castro Portillo, Zachary Martinez, Manuel Llano