Average Co-Inventor Count = 3.44
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 Information Systems Inc. (5 from 243 patents)
2. American Telephone and Telegraph, Co. (4 from 386 patents)
3. At&t Bell Laboratories (2 from 3,345 patents)
4. At&t Technologies, Inc. (1 from 382 patents)
5. American Telephone and Telegraph Corporation (1 from 7 patents)
7 patents:
1. D334568 - Portable telephone handset
2. 4846032 - Device and method for separating printed circuit boards
3. D301146 - Telephone handset
4. D301144 - Telephone stand
5. D301143 - Telephone stand
6. D297534 - Telephone stand
7. D277480 - Wall telephone stand or similar article