DH

David Allan Hellenga

IBM: 3 patents #26,272 of 70,183Top 40%
Overall (All Time): #1,625,167 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6314462 Sub-entry point interface architecture for change management in a computer network Mary Kim Majikes, Thomas Mooney, Brian D. Valentine 2001-11-06
5903757 Monitoring and handling of exception conditions in computer system Edward Gretz, Richard K. Hill 1999-05-11
4862349 Method for extracting and/or replacing control system information in a computer operating system Dennis Foreman, Richard K. Hill 1989-08-29