Average Co-Inventor Count = 2.90
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. Hewlett-packard Development Company, L.P. (1 from 27,412 patents)
2. American Telephone and Telegraph, Co. (1 from 386 patents)
3. At&t Information Systems Inc. (1 from 243 patents)
4. Clearwave Communications, Inc. (1 from 1 patent)
3 patents:
1. 7599288 - Processing of usage data for first and second types of usage-based functions
2. 5666397 - Individual telephone line call event buffering system
3. 4823338 - Virtual local area network