Average Co-Inventor Count = 15.41
ph-index = 4
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. Transaction Technology Inc. (4 from 31 patents)
4 patents:
1. 5572572 - Computer and telephone apparatus with user friendly interface and
2. 5195130 - Computer and telephone apparatus with user friendly computer interface
3. 5008927 - Computer and telephone apparatus with user friendly computer interface
4. 4991199 - Computer and telephone apparatus with user friendly computer interface