Average Co-Inventor Count = 3.00
ph-index = 1
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. Research in Motion Corporation (2 from 4,495 patents)
2. Blackberry Corporation (5,891 patents)
2 patents:
1. 8312092 - Use of persistent sessions by a presence access layer
2. 8103730 - Use of persistent sessions by a presence access layer