Patents by Inventor John Q. Zheng

John Q. Zheng 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).

  • Radiation attenuation system
    Publication number: 20040041107
    Abstract: A radiation attenuation system is disclosed. The system includes a polymeric resin comprising a web. The system also includes a radiation attenuation material dispersed at least partially in the web. The system has a radiation transmission attenuation factor of at least about 10% of a primary 100 kVp x-ray beam. A method of making a radiation attenuation system including a radiation attenuation material dispersed at least partially in a polymeric resin is also disclosed. The method includes extruding the radiation attenuation material and the polymeric resin thereby forming an extrusion. The method also includes forming the extrusion into a web. The web has a radiation transmission attenuation factor of at least about 10% of a primary 100 kVp x-ray beam. A shield for the attenuation of radiation is also disclosed.
    Type: Application
    Filed: August 7, 2003
    Publication date: March 4, 2004
    Applicants: Worldwide Innovations & Technologies, Inc., Winpak Films, Inc.
    Inventors: John A. Cadwalader, John Q. Zheng
  • Radiation attenuation system
    Patent number: 6674087
    Abstract: A radiation attenuation system is disclosed. The system includes a polymeric resin comprising a web. The system also includes a radiation attenuation material dispersed at least partially in the web. The system has a radiation transmission attenuation factor of at least about 10% of a primary 100 kVp x-ray beam. A method of making a radiation attenuation system including a radiation attenuation material dispersed at least partially in a polymeric resin is also disclosed. The method includes extruding the radiation attenuation material and the polymeric resin thereby forming an extrusion. The method also includes forming the extrusion into a web. The web has a radiation transmission attenuation factor of at least about 10% of a primary 100 kVp x-ray beam. A shield for the attenuation of radiation is also disclosed.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: January 6, 2004
    Assignees: Worldwide Innovations & Technologies, Inc., Winpak Films Inc.
    Inventors: John A. Cadwalader, John Q. Zheng
  • Radiation attenuation system
    Publication number: 20020148980
    Abstract: A radiation attenuation system is disclosed. The system includes a polymeric resin comprising a web. The system also includes a radiation attenuation material dispersed at least partially in the web. The system has a radiation transmission attenuation factor of at least about 10% of a primary 100 kVp x-ray beam. A method of making a radiation attenuation system including a radiation attenuation material dispersed at least partially in a polymeric resin is also disclosed. The method includes extruding the radiation attenuation material and the polymeric resin thereby forming an extrusion. The method also includes forming the extrusion into a web. The web has a radiation transmission attenuation factor of at least about 10% of a primary 100 kVp x-ray beam. A shield for the attenuation of radiation is also disclosed.
    Type: Application
    Filed: January 31, 2001
    Publication date: October 17, 2002
    Applicant: WORLDWIDE INNOVATIONS AND TECHNOLOGIES, INC. and WINPAK FILMS INC.
    Inventors: John A. Cadwalader, John Q. Zheng