Average Co-Inventor Count = 4.00
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. Contentguard Holdings, Inc. (3 from 130 patents)
2. Contentgaurd Holdings, Inc. (1 from 4 patents)
4 patents:
1. 7907749 - Multi-stage watermarking process and system
2. 7609848 - Multi-stage watermarking process and system
3. 7184571 - Multi-stage watermarking process and system
4. 6912294 - Multi-stage watermarking process and system