Patents by Inventor Daniel Y. Chen

Daniel Y. Chen 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).

  • Printed postage container having integrated security features
    Patent number: 9704301
    Abstract: A container having postage printed on the container and having integrated authenticating security features is provided. The container can further include a recipient address field and a sender address field.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: July 11, 2017
    Assignee: United States Postal Service
    Inventors: Daniel J. Barrett, Daniel Y. Chen, Robert W. Lee
  • Miniature cell adaptor to accommodate small samples in resistivity cells
    Patent number: 4573010
    Abstract: An adaptor for supporting small thin film or fibrous samples of material between the electrodes of a resistivity cell is described which comprises a pair of stacked electrically insulating plates, each plate having a central electrode therethrough and presenting confronting conductive surfaces of known surface area for sandwiching the sample therebetween for resistivity measurement, and a guarding electrode on one confronting plate surface and surrounding the central electrode thereon for electrically contacting the guarding electrode of the resistivity cell; the plates may be hingedly joined along respective sides and include fittings to maintain the confronting electrode surfaces in concentric alignment with the sample therebetween.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: February 25, 1986
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Robert E. Barker, Jr., Daniel Y. Chen