Patents by Inventor Danvers E. Johnston

Danvers E. Johnston 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).

  • Patent number: 8918152
    Abstract: Disclosed are devices comprising multiple nanogaps having a separation of less than about 5 nm. Also disclosed are methods for fabricating these devices.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: December 23, 2014
    Assignee: The Trustees Of The University Of Pennsylvania
    Inventors: Douglas R. Strachan, Danvers E. Johnston, Beth S. Guiton, Peter K. Davies, Dawn A. Bonnell, Alan T. Johnson, Jr.
  • Publication number: 20140216539
    Abstract: Structures useful for forming contacts to materials having low charge carrier mobility are described. Methods for their formation and use are also described. These structures include interdigitated electrodes capable of making electrical contact to semiconducting materials having low electron and/or whole mobility. In particular, these structures are useful for organic semiconducting devices made with conducting polymers and small molecules. They are also useful for semiconducting devices made with nanocrystalline semiconductors.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 7, 2014
    Applicant: BROOKHAVEN SCIENCE ASSOCIATES, LLC
    Inventors: Danvers E. Johnston, Jonathan E. Allen, Charles T. Black, Chang-Yong Nam
  • Publication number: 20140096483
    Abstract: A transfer chamber is disclosed having a first plate with a first surface configured to receive a sample and a second surface containing a groove. The second surface of the first plate surrounds the first surface of the first plate. A second plate has a first surface and a second surface containing a groove. A sealing component is disposed in the groove of the first plate or the second plate. A pivotable link couples the first plate and the second plate. The pivotable link is configured to hold the first plate, the second plate, and the sealing component together to substantially create an air-tight seal between the first surface of the first plate and the second surface of the second plate. The pivotable link is configured to open the seal in response to a pressure differential across the transfer chamber.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 10, 2014
    Applicant: Brookhaven Science Associates, LLC
    Inventors: Danvers E. Johnston, Jonathan E. Allen, Edward Baker, Charles T. Black, Chang-Yong Nam
  • Publication number: 20100247381
    Abstract: Disclosed are copolymers of carbon nanotubes, as well as processes and applications of carbon nanotube dispersions. Carbon nanotube emulsions and related technology are also disclosed. The controlled deposition of carbon nanotubes on substrates is also provided. Methods of purifying single-walled carbon nanotubes are also provided. Devices made according to the disclosed methods are further described herein.
    Type: Application
    Filed: June 3, 2010
    Publication date: September 30, 2010
    Applicant: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
    Inventors: Arjun G. Yodh, Mohammad F. Islam, Alan T. Johnson, JR., Danvers E. Johnston
  • Publication number: 20100144535
    Abstract: Disclosed are devices comprising multiple nanogaps having a separation of less than about 5 nm. Also disclosed are methods for fabricating these devices.
    Type: Application
    Filed: February 13, 2008
    Publication date: June 10, 2010
    Applicant: The Trustees of the University of Pennsylvania
    Inventors: Douglas R. Strachan, Danvers E. Johnston, Beth S. Guiton, Peter K. Davies, Dawn A. Bonnell, Alan T. Johnson, JR.