Average Co-Inventor Count = 1.30
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. At+t Corp. (2 from 4,208 patents)
2. At&t Bell Laboratories (1 from 3,345 patents)
3. American Telephone & Telegraph Co., At&t Bell Laboratories (1 from 745 patents)
4 patents:
1. 5926100 - Alarm alerting method and apparatus
2. 5748078 - Alarm alerting method and apparatus
3. 4875037 - Automatic rerouting of calls through data buses
4. 4500960 - Geographically distributed multiprocessor time-shared communication