Average Co-Inventor Count = 2.00
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. Dornier Gmbh (1 from 149 patents)
2. Hoffmann & Co. Elektrokohle Gesellschaft Mbh (1 from 4 patents)
2 patents:
1. 5244065 - Pantograph slipper for current collectors
2. 5129265 - Multidirectional force sensor