Average Co-Inventor Count = 3.71
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. Progressive Casualty Insurance Company (3 from 54 patents)
3 patents:
1. 6868386 - Monitoring system for determining and communicating a cost of insurance
2. 6064970 - Motor vehicle monitoring system for determining a cost of insurance
3. 5797134 - Motor vehicle monitoring system for determining a cost of insurance