QC

Qi Cheng

IBM: 13 patents #8,581 of 70,183Top 15%
Overall (All Time): #381,037 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10157204 Generating statistical views in a database system John Frederick Hornibrook, Ting Yu Leung, XIN-YUAN WU, Daniel C. Zilio, Calisto P. Zuzarte 2018-12-18
10140330 Data consistency maintenance for sequential requests Qining Li, Jing Sun, Lei Sun, Tianyi Wang, Yan Zhao +1 more 2018-11-27
10129364 Data consistency maintenance for sequential requests Qining Li, Jing Sun, Lei Sun, Tianyi Wang, Yan Zhao +1 more 2018-11-13
9727608 Generating statistical views in a database system John Frederick Hornibrook, Ting Yu Leung, XIN-YUAN WU, Daniel C. Zilio, Calisto P. Zuzarte 2017-08-08
8626744 Executing CASE expressions containing subqueries John Frederick Hornibrook, Jose Aguilar SABORIT, David C. Sharpe, Calisto P. Zuzarte 2014-01-07
7966314 System for aggregation subquery join elimination Calisto P. Zuzarte, Wenbin Ma 2011-06-21
7945557 Method, system, and program for query optimization with algebraic rules Mir Hamid Pirahesh, Yang Sun, Calisto P. Zuzarte 2011-05-17
7917502 Optimized collection of just-in-time statistics for database query optimization John Frederick Hornibrook, Wing Yan Lau, Ivan Popivanov, Xiaoyan Qian, Michael Joshua Snowbell +2 more 2011-03-29
7788241 Method for reducing overhead of validating constraints in a database Haider A. Rizvi, Calisto P. Zuzarte 2010-08-31
7454416 Method for aggregation subquery join elimination Calisto P. Zuzarte, Wenbin Ma 2008-11-18
7275056 System and method for transforming queries using window aggregation Linqi Liu, Wenbin Ma, Mir Hamid Pirahesh, Calisto P. Zuzarte 2007-09-25
7240078 Method, system, and program for query optimization with algebraic rules Mir Hamid Pirahesh, Yang Sun, Calisto P. Zuzarte 2007-07-03
7188116 Method and apparatus for deleting data in a database 2007-03-06