Average Co-Inventor Count = 3.00
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. Carl Zeiss Vision International Gmbh (2 from 226 patents)
2 patents:
1. 12287536 - Progressive spectacle lens
2. 12001087 - Progressive spectacle lens