Average Co-Inventor Count = 3.20
ph-index = 4
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. Walker Digital, LLC (2 from 532 patents)
2. Hewlett-packard Development Company, L.p. (1 from 27,311 patents)
3. Walker Asset Management Limited Partnership (1 from 44 patents)
4 patents:
1. RE42154 - Parallel data network billing and collection system
2. 6684333 - Parallel data network billing and collection system
3. 6246755 - Method and system for connecting a caller to a content provider
4. 5949875 - Parallel data network billing and collection system