Average Co-Inventor Count = 2.00
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. Digimarc Corporation (1 from 1,407 patents)
2. Digimarc Id Systems (1 from 2 patents)
2 patents:
1. 7278580 - Identification document with integrated circuit and antenna in a layered document structure
2. 6923378 - Identification card