Average Co-Inventor Count = 3.90
ph-index = 5
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. At+t Corp. (5 from 4,208 patents)
2. At&t Intellectual Property I, LP (4 from 16,497 patents)
3. Lucent Technologies Inc. (2 from 9,364 patents)
4. At&t Ipm Corp. (91 patents)
11 patents:
1. 9361888 - Method and device for providing speech-to-text encoding and telephony service
2. 8489397 - Method and device for providing speech-to-text encoding and telephony service
3. 8265931 - Method and device for providing speech-to-text encoding and telephony service
4. 8019686 - Method and system for allowing simultaneous usage of prepaid services
5. 7627529 - Method and system for allowing simultaneous usage of prepaid services
6. 7433818 - Subscriber terminal for providing speech-text encoding and telephony service
7. 7027986 - Method and device for providing speech-to-text encoding and telephony service
8. 6687349 - System and method for defining a local communication space
9. 6418202 - Spontaneous messaging service for prepaid calling card users
10. 6021432 - System for processing broadcast stream comprises a human-perceptible
11. 5671267 - Interactive system for communications between a cordless telephone and a