Patents by Inventor David Allan Hellenga

David Allan Hellenga 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).

  • Sub-entry point interface architecture for change management in a computer network
    Patent number: 6314462
    Abstract: This invention relates generally to communications with distributed nodes in a computer network, and more specifically with change management in a computer network.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: November 6, 2001
    Assignee: International Business Machines Corporation
    Inventors: David Allan Hellenga, Mary Kim Majikes, Thomas Michael Mooney, Brian Douglas Valentine
  • Monitoring and handling of exception conditions in computer system
    Patent number: 5903757
    Abstract: A computer system monitors a variety of conditions indicating levels to which different components, services and resources are being utilized, and based on these levels, determines a measure of overall system utilization. By way of example, the conditions are CPU utilizations dispatcher queue length, number of active users, number of users in an I/O wait queue and the paging rate. The system determines and repeatedly updates a data value for each of the conditions representing a respective amount of utilization. Then, the system determines a weighted summation based on the latest update of the data values and a significance of each of the data values in indicating system utilization. Next, the system compares the weighted summation to two or more thresholds, and determines and performs an action based on the comparison of the weighted summation to the thresholds.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: May 11, 1999
    Assignee: International Business Machines Corporation
    Inventors: Edward Gretz, David Allan Hellenga, Richard Kevin Hill