Average Co-Inventor Count = 1.60
ph-index = 2
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. Volt Delta Resources, LLC (3 from 6 patents)
2. Volt Information Sciences, Inc. (1 from 15 patents)
4 patents:
1. 8515048 - Method of and system for automatically switching between free directory assistance service and chargeable directory assistance service
2. 8233608 - Method of and system for automatically switching between free directory assistance service and chargeable directory assistance service
3. 7831031 - Method and system for operator services automation using an operator services switch
4. 7180994 - Method and system for operator services automation using an operator services switch