Average Co-Inventor Count = 2.67
ph-index = 1
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. Schott Ag (1 from 1,035 patents)
2. Universiteit Twente (1 from 47 patents)
2 patents:
1. 12395360 - Key holder for an optical key and system comprising the key holder for authenticating an optical key by verifying a match of challenge-response pairs
2. 11212120 - Optical key protected authentication and encryption