Average Co-Inventor Count = 6.46
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-smt Ag (2 from 461 patents)
2 patents:
1. 7372634 - Reticle-masking objective with aspherical lenses
2. 7130129 - Reticle-masking objective with aspherical lenses