Average Co-Inventor Count = 3.27
ph-index = 5
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. Motorola Corporation (6 from 20,290 patents)
6 patents:
1. D417442 - Transit vehicle card reader
2. D401916 - Point-of-entry card reader
3. D401571 - Transit gate card reader
4. D400191 - Point-of-sale card reader
5. D396700 - Card reader for desktop contacted interface
6. D334561 - Electronic equipment power supply module