Average Co-Inventor Count = 5.00
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. Dr. Ing. Rudolf Hell Gmbh (1 from 140 patents)
2. Dipl. Ing. Rudolf Hell Gmbh (1 from 1 patent)
2 patents:
1. 4902156 - Mounting device for image cylinders
2. 4746180 - Device for light transmission