Average Co-Inventor Count = 2.29
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. Efrat Future Technology Ltd. (4 from 4 patents)
2. Comverse Technology Inc. (3 from 3 patents)
4 patents:
1. 5668855 - Message management system
2. 5586173 - Message management system
3. 5317628 - Message management system
4. 5008926 - Message management system