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North York, Canada

Qi Cheng

USPTO Granted Patents = 15

Average Co-Inventor Count = 3.7

ph-index = 7

Forward Citations = 100(Granted Patents)

Location History:

Markham, CA (2007 - 2011)
North York, CA (2007 - 2014)
Toronto, CA (2017 - 2018)
Beijing, CN (2018 - 2019)

Company Filing History:

13 out of 164,197

International Business Machines Corporation

Hangzhou Zhongee Bio-sci & Tech. Co., Ltd.

Hangzhou Zhongce Bio-sci&tech. Co., Ltd.

Years Active: 2007-2019

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10301606 - DNA polymerase possessing continuous catalytic capacity and salt tolerance (2019-05-28),

2. 10157204 - Generating statistical views in a database system (2018-12-18),

3. 10140330 - Data consistency maintenance for sequential requests (2018-11-27),

4. 10129364 - Data consistency maintenance for sequential requests (2018-11-13),

5. 10047349 - DNA polymerase possessing continuous catalytic capacity and salt tolerance (2018-08-14),

6. 9727608 - Generating statistical views in a database system (2017-08-08),

7. 8626744 - Executing CASE expressions containing subqueries (2014-01-07),

8. 7966314 - System for aggregation subquery join elimination (2011-06-21),

9. 7945557 - Method, system, and program for query optimization with algebraic rules (2011-05-17),

10. 7917502 - Optimized collection of just-in-time statistics for database query optimization (2011-03-29),

11. 7788241 - Method for reducing overhead of validating constraints in a database (2010-08-31),

12. 7454416 - Method for aggregation subquery join elimination (2008-11-18),

13. 7275056 - System and method for transforming queries using window aggregation (2007-09-25),

14. 7240078 - Method, system, and program for query optimization with algebraic rules (2007-07-03),

15. 7188116 - Method and apparatus for deleting data in a database (2007-03-06),

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