Patents by Inventor Ranjan K. Paul

Ranjan K. Paul 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).

  • Statistical analysis for maintenance optimization
    Patent number: 8117007
    Abstract: A computer implemented method, apparatus, and computer program product for identifying an interval for performing a maintenance task. The process retrieves scheduled maintenance data and un-scheduled in-service maintenance data for a given apparatus type. The process maps the un-scheduled in-service maintenance data to the scheduled maintenance data for the given apparatus type to form mapped maintenance data. The process performs a statistical analysis on the mapped maintenance data. The process identifies an optimal interval for performing the maintenance task based on a result of the statistical analysis to form a recommended maintenance interval.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 14, 2012
    Assignee: The Boeing Company
    Inventors: Anbessie A. Yitbarek, I-Li Lu, Ranjan K. Paul, Farshad Dopulatshahi, Elizabeth A. Whalen, Shuying Zhu, Peter A. Fiddler
  • STATISTICAL ANALYSIS FOR MAINTENANCE OPTIMIZATION
    Publication number: 20100070237
    Abstract: A computer implemented method, apparatus, and computer program product for identifying an interval for performing a maintenance task. The process retrieves scheduled maintenance data and un-scheduled in-service maintenance data for a given apparatus type. The process maps the un-scheduled in-service maintenance data to the scheduled maintenance data for the given apparatus type to form mapped maintenance data. The process performs a statistical analysis on the mapped maintenance data. The process identifies an optimal interval for performing the maintenance task based on a result of the statistical analysis to form a recommended maintenance interval.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 18, 2010
    Inventors: Anbessie A. Yitbarek, I-Li Lu, Ranjan K. Paul, Farshad Doulatshahi, Elizabeth A. Whalen, Shuying Zhu, Peter A. Fiddler
  • System, method, and computer program product for fault prediction in vehicle monitoring and reporting system
    Patent number: 7230527
    Abstract: A system, method, and computer program product for predicting failure of a vehicle system or subsystem by using statistical analysis of prior maintenance messages and vehicle failures, such that the predictions of failures may be incorporated into a vehicle monitoring and reporting system. Maintenance message data and vehicle system or subsystem failure data are collected from a central maintenance computer of a vehicle, such as an aircraft. This maintenance message and vehicle system or subsystem failure data are analyzed to discern relationships between maintenance messages and vehicle system or subsystem failures which will enable future failures to be predicted. By predicting future failures, maintenance can be performed in time to prevent the vehicle failure and thereby avoid unnecessary costs and unscheduled interruptions of vehicle operations.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: June 12, 2007
    Assignee: The Boeing Company
    Inventors: Sabyasachi Basu, William R. Frans, Roman D. Fresnedo, Shuguang Song, Valeria V. Thompson, Rodney A. Tjoelker, Virginia L. Wheway, Ranjan K. Paul, John B. Maggiore