QC

Qi Cheng

IBM: 3 patents #1,237 of 9,568Top 15%
📍 Toronto, CA: #42 of 661 inventorsTop 7%
Overall (2011): #38,400 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
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