Average Co-Inventor Count = 2.40
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. The Viking Corporation (2 from 130 patents)
2 patents:
1. 9924847 - Self-propelled working device
2. 9857025 - Self-propelled working device