Average Co-Inventor Count = 4.61
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. Carl-zeiss-stiftung, Heidenheim/brenz (2 from 57 patents)
2. Carl-zeiss-stiftung (1 from 702 patents)
3 patents:
1. D333312 - Anti-laser protective spectacles
2. D330571 - Laser-protection spectacles
3. 5146623 - Safety spectacles against laser radiation