Patents by Inventor Joanne Bechta Dugan

Joanne Bechta Dugan 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 and system for dynamic probabilistic risk assessment
    Patent number: 8346694
    Abstract: The DEFT methodology, system and computer readable medium extends the applicability of the PRA (Probabilistic Risk Assessment) methodology to computer-based systems, by allowing DFT (Dynamic Fault Tree) nodes as pivot nodes in the Event Tree (ET) model. DEFT includes a mathematical model and solution algorithm, supports all common PRA analysis functions and cutsets. Additional capabilities enabled by the DFT include modularization, phased mission analysis, sequence dependencies, and imperfect coverage.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 1, 2013
    Assignee: University of Virginia Patent Foundation
    Inventors: Joanne Bechta Dugan, Hong Xu
  • METHOD AND SYSTEM FOR DYNAMIC PROBABILISTIC RISK ASSESSMENT
    Publication number: 20110137703
    Abstract: The DEFT methodology, system and computer readable medium extends the applicability of the PRA (Probabilistic Risk Assessment) methodology to computer-based systems, by allowing DFT (Dynamic Fault Tree) nodes as pivot nodes in the Event Tree (ET) model. DEFT includes a mathematical model and solution algorithm, supports all common PRA analysis functions and cutsets. Additional capabilities enabled by the DFT include modularization, phased mission analysis, sequence dependencies, and imperfect coverage.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 9, 2011
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Joanne Bechta Dugan, Hong Xu