Average Co-Inventor Count = 7.36
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. Amtech Systems, Incorporated (9 from 76 patents)
9 patents:
1. 12437285 - Vehicle tracking system for congestion pricing using transponders
2. 12069552 - Vehicle tracking system using smart-phone as active transponder
3. 12056566 - Vehicle tracking system using transponders
4. 11663427 - Vehicle tracking system using transponders
5. 11341345 - Vehicle tracking system using transponders
6. 11323865 - Vehicle tracking system using smart-phone as active transponder
7. 10769392 - Vehicle tracking system using transponders
8. 10708745 - Vehicle tracking system using smart-phone as active transponder
9. 10134210 - Vehicle tracking system using smart-phone as active transponder