Average Co-Inventor Count = 3.46
ph-index = 3
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. Linotype-hell Ag (1 from 68 patents)
3. Firma Dr. -ing. Rudolf Hell Gmbh (1 from 2 patents)
3 patents:
1. 5313482 - Method and circuit arrangement for correcting the light power output of
2. 4636064 - Device for the automatic loading of film material on a suction plate
3. 4257042 - Electronic pattern generator