Patents by Inventor Sandra Guzman

Sandra Guzman 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).

  • Three-dimensional detector for radiotherapy verification
    Patent number: 11045668
    Abstract: A volumetric radiation dose detector provides radiation sensors distributed along a closed surface presenting surface normals that vary over a range of azimuth and altitude angles to provide accurate dose modeling for radiation received at a comparable range of angles. Concentric layers of surfaces provide volumetric dose information that can be used to directly produce useful dose maps and assessments.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 29, 2021
    Assignee: HRS International Solutions, LLC
    Inventors: Dante E. Roa, Jimmy Hernandez Bello, Jose Vidal Valladolid Salazar, Roger Challco Chalco, Carmen Sandra Guzman Calcina, Modesto Edilberto Montoya Zavaleta, Andres Miguel Gonzales Galvez
  • Three-Dimensional Detector for Radiotherapy Verification
    Publication number: 20200139157
    Abstract: A volumetric radiation dose detector provides radiation sensors distributed along a closed surface presenting surface normals that vary over a range of azimuth and altitude angles to provide accurate dose modeling for radiation received at a comparable range of angles. Concentric layers of surfaces provide volumetric dose information that can be used to directly produce useful dose maps and assessments.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Inventors: Dante E. Roa, Jimmy Hernandez Bello, Jose Vidal Valladolid Salazar, Roger Challco Chalco, Carmen Sandra Guzman Calcina, Modesto Edilberto Montoya Zavaleta, Andres Miguel Gonzales Galvez
  • Tactile transducers and method of operating
    Publication number: 20050046551
    Abstract: A portable electronic device (100) includes a vibrating transducer having a resilient support and a first mass supported by the first resilient support forming a mechanical resonator, and an electrical circuit coupled to the first vibrating transducer to apply a drive signal. A plurality of tactile vibration transducers (130, 140) can work in unison to produce strong tactile stimulus (216, 228, 230).
    Type: Application
    Filed: August 28, 2003
    Publication date: March 3, 2005
    Inventors: David Cranfill, Sandra Guzman, Scott Isabelle, Rindala Saliba
  • Self-contained apparatus and method of monitoring telecommunications equipment
    Patent number: 5909480
    Abstract: An apparatus for monitoring a telecommunications system includes a detachable communications module, such as a modem, connected to a call line that is independent of the system to be monitored. A controller is connected to the monitored system and to the communications module. The controller includes at least one detector for sensing various off-normal conditions relevant to operating the monitored system. The controller also includes an auto-dialer that is responsive to the detectors for triggering a call to a remote site via the telecommunications module upon sensing the presence of one of the off-normal conditions. A backup power source is connected to power the controller and the communications module if a primary power source fails. Preferably, the backup source includes at least one battery and the backup source, the controller, and the communications module are contained in a housing that is separate from the monitored system.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: June 1, 1999
    Assignee: Siemens Information and Communication Networks, Inc.
    Inventors: Alan E. Reynaud, Robert Churchill, Jr., Sandra Guzman, Daksha Amin, Alan J. Zeringue