Average Co-Inventor Count = 2.67
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. Ernst Leitz Wetzlar Gmbh (2 from 168 patents)
2 patents:
1. 4930882 - Adjustable microscope focusing drive
2. 4837595 - Process and device for photographing microscopic objects