Average Co-Inventor Count = 1.33
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. Ex-Cell-O Gmbh (2 from 299 patents)
2 patents:
1. 4375128 - Manual keyway punching tool
2. 4353164 - Draw punch