1. At&t Intellectual Property I, L.p. (9 from 16,478 patents)

2. Iowa State University Research Foundation, Inc. (3 from 1,388 patents)

3. At+t Corp. (2 from 4,208 patents)

4. Google Inc. (1 from 32,429 patents)

5. Rutgers, the State University of New Jersey (1 from 1,454 patents)

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3. 9170984 - Computing time-decayed aggregates under smooth decay functions

4. 8908554 - Computing time-decayed aggregates in data streams

5. 8645309 - Processing data using sequential dependencies

6. 8639667 - Generating conditional functional dependencies

7. 8484269 - Computing time-decayed aggregates under smooth decay functions

8. 8391164 - Computing time-decayed aggregates in data streams

9. 8160837 - Methods and apparatus to determine statistical dominance point descriptors for multidimensional data

10. 8103708 - System and method for generating statistical descriptors for a data stream

11. 7590657 - System and method for identifying hierarchical heavy hitters in a multidimensional environment

12. 6738762 - Multidimensional substring selectivity estimation using set hashing of cross-counts