Average Co-Inventor Count = 3.07
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. International Business Machines Corporation (3 from 164,244 patents)
3 patents:
1. 5307406 - ISDN power source detection circuit
2. 5224111 - Dual fiber drive system
3. 5048055 - Multi-data rate selectable equalizer