Patents by Inventor Edwin J. Grant

Edwin J. Grant 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).

  • Method to fabricate portable electron source based on nitrogen incorporated ultrananocrystalline diamond (N-UNCD)
    Patent number: 9299526
    Abstract: A source cold cathode field emission array (FEA) source based on ultra-nanocrystalline diamond (UNCD) field emitters. This system was constructed as an alternative for detection of obscured objects and material. Depending on the geometry of the given situation a flat-panel source can be used in tomography, radiography, or tomosynthesis. Furthermore, the unit can be used as a portable electron or X-ray scanner or an integral part of an existing detection system. UNCD field emitters show great field emission output and can be deposited over large areas as the case with carbon nanotube “forest” (CNT) cathodes. Furthermore, UNCDs have better mechanical and thermal properties as compared to CNT tips which further extend the lifetime of UNCD based FEA.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: March 29, 2016
    Assignees: UChicago Argonne, LLC, The Curators of the University of Missouri
    Inventors: Anirudha V. Sumant, Ralu Divan, Chrystian M. Posada, Carlos H. Castano, Edwin J. Grant, Hyoung K. Lee
  • METHOD TO FABRICATE PORTABLE ELECTRON SOURCE BASED ON NITROGEN INCORPORATED ULTRANANOCRYSTALLINE DIAMOND (N-UNCD)
    Publication number: 20150311023
    Abstract: A source cold cathode field emission array (FEA) source based on ultra-nanocrystalline diamond (UNCD) field emitters. This system was constructed as an alternative for detection of obscured objects and material. Depending on the geometry of the given situation a flat-panel source can be used in tomography, radiography, or tomosynthesis. Furthermore, the unit can be used as a portable electron or X-ray scanner or an integral part of an existing detection system. UNCD field emitters show great field emission output and can be deposited over large areas as the case with carbon nanotube “forest” (CNT) cathodes. Furthermore, UNCDs have better mechanical and thermal properties as compared to CNT tips which further extend the lifetime of UNCD based FEA.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 29, 2015
    Applicant: UChicago Argonne, LLC
    Inventors: Anirudha V. Samant, Ralu Divan, Chrystian M. Posada, Carlos H. Castano, Edwin J. Grant, Hyoung K. Lee