Average Co-Inventor Count = 1.28
ph-index = 3
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. Yahoo! Inc. (4 from 2,367 patents)
4 patents:
1. 8290923 - Performing large scale structured search allowing partial schema changes without system downtime
2. 7958111 - Ranking documents
3. 7930286 - Federated searches implemented across multiple search engines
4. 7756867 - Ranking documents