PC

Petrus Chan

IBM: 6 patents #16,453 of 70,183Top 25%
Overall (All Time): #826,829 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11210290 Automated optimization of number-of-frequent-value database statistics Mohamad F. Kalil, Vincent Corvinelli, Calisto P. Zuzarte 2021-12-28
8589435 Method, system and program for simplifying data flow in a statement with sequenced subexpressions Richard S. Sidle 2013-11-19
7302441 System and method for gradually bringing rolled in data online with incremental deferred integrity processing Miroslaw Flasza, Dieu Quang La, Bruce G. Lindsay, William T. O'Connell 2007-11-27
7290214 Independent deferred incremental refresh of materialized views Richard S. Sidle, Dieu Quang La, Roberta Jo Cochrane, William T. O'Connell, M. Hamid. Pirahesh 2007-10-30
7167878 System and method for identifying and maintaining base table data blocks requiring deferred incremental integrity maintenance Timothy R. Malkemus, Sriram K. Padmanabhan 2007-01-23
6453314 System and method for selective incremental deferred constraint processing after bulk loading data Roberta Jo Cochrane, Sam S. Lightstone, Mir Hamid Pirahesh, Richard S. Sidle, Tuong Chanh Truong +2 more 2002-09-17