Average Co-Inventor Count = 1.45
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. Research in Motion Corporation (7 from 4,495 patents)
2. Blackberry Corporation (1 from 5,890 patents)
3. James Wang (0 patent)
4. Rudy Rawlins (0 patent)
8 patents:
1. 8700038 - Method and system for signalling the transfer of voice calls between access points in a wireless local area network
2. 8433820 - Method and system for conserving battery power in wireless devices operating in a wireless local area network
3. 8363596 - Power saving via variable listen intervals in a WLAN
4. 8213404 - System and method for allocating session initiation protocol (SIP) identifications (IDs) to user agents
5. 8005032 - Maintaining delivery traffic indication message (DTIM) periods on a per-wireless client device basis
6. 7599347 - System and method for allocating session initiation protocol (SIP) identifications (IDs) to user agents
7. 7593417 - Handling broadcast and multicast traffic as unicast traffic in a wireless network
8. 7420942 - Different delivery traffic indication message (DTIM) periods for different wireless networks having different network names