Average Co-Inventor Count = 1.25
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 (5 from 702 patents)
5 patents:
1. 5749745 - Adapter connector and camera assembly equipped with said adapter
2. 5194988 - Device for correcting perspective distortions
3. 5044728 - Device for correcting perspective distortions
4. 4336990 - Diaphragm control system
5. 4081812 - Photographic lens with perspective-adjustment feature