Average Co-Inventor Count = 4.00
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. International Business Machines Corporation (2 from 164,108 patents)
2 patents:
1. 8051058 - System for estimating cardinality in a database system
2. 7478083 - Method and system for estimating cardinality in a database system