Average Co-Inventor Count = 2.57
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. Grammer Ag (2 from 335 patents)
2. Productivenetwork Gmbh (1 from 1 patent)
3 patents:
1. D991052 - Clock
2. D942765 - Train seat
3. D918610 - Bus seat