Patents by Inventor Mark D. Irwin

Mark D. Irwin 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: 8620821
    Abstract: A method and system for secure package delivery utilizing digital signatures is described. In one configuration, data regarding the weight, dimensions and origination are cryptographically processed to create an authentication digital signature with message retrieval capability. The data is read and independently verified at the package destination.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 31, 2013
    Assignee: Pitney Bowes Inc.
    Inventors: Robert M. Goldberg, Leon A. Pintsov, Mark D. Irwin