Average Co-Inventor Count = 5.21
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. Sun Chemical Corporation (2 from 589 patents)
2. Verification Technologies, Inc. (2 from 19 patents)
4 patents:
1. 7301611 - Security imaging system
2. 7176308 - Processes for preparing novel methylene blue derivative
3. 7068356 - Security imaging system
4. 6952392 - Laser reactive dyes for DVD copy protection system