Average Co-Inventor Count = 3.27
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 Surgical Gmbh (3 from 50 patents)
3 patents:
1. 7467868 - Head magnifier
2. D564011 - Magnifier spectacles
3. D562876 - Binocular magnifier