Average Co-Inventor Count = 3.51
ph-index = 10
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 Bell Laboratories (5 from 3,345 patents)
2. At&t Information Systems Inc. (5 from 243 patents)
3. At&t Technologies, Inc. (4 from 382 patents)
4. American Telephone and Telegraph, Co. (3 from 386 patents)
5. At&t Company (2 from 29 patents)
6. At&t Company and At&t Information Systems Inc. (2 from 2 patents)
7. At&t Laboratories, Limited (1 from 28 patents)
8. American Telephone and Telegraph Corporation (1 from 7 patents)
19 patents:
1. D340036 - Smart card reader
2. D332610 - Telephone handset or similar article
3. D326850 - Telephone base
4. D326649 - Telephone base
5. D323489 - Portable terminal for smart cards
6. D318469 - Desk-mounted coinless public telephone
7. D310665 - Controller housing
8. D309605 - Controller housing with extender
9. D301146 - Telephone handset
10. D301144 - Telephone stand
11. D301143 - Telephone stand
12. D297534 - Telephone stand
13. D289284 - Panel for a public video terminal enclosure
14. D289285 - Panel for a public video terminal enclosure
15. D285306 - Public access data processor controlled information terminal