Average Co-Inventor Count = 2.40
ph-index = 2
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. Polaroid Corporation (2 from 2,176 patents)
2 patents:
1. 5075769 - Video identification card system
2. 4516845 - Security control system and method for identification card cameras