Average Co-Inventor Count = 2.40
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. America Online, Inc. (3 from 179 patents)
2. Blackberry Corporation (1 from 5,890 patents)
3. Research in Motion Corporation (1 from 4,495 patents)
4. Aol Llc, a Delaware Limited Liability Company (1 from 66 patents)
6 patents:
1. 8548432 - Authenticating voice calls from mobile devices
2. 8301117 - Authenticating voice calls from mobile devices
3. 7412035 - External detection of optional telephone services on a telephone line
4. 7158615 - External detection of optional telephone services on an unknown telephone line
5. 6999577 - Multi-user call waiting
6. 6950498 - External detection of optional telephone services