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. Zizala Lichtsysteme Gmbh (1 from 16 patents)
2. Karl Zizala Metallwarenfabrik (1 from 1 patent)
2 patents:
1. 7244055 - Headlight for motor vehicle
2. 4811174 - Vehicle lighting device