Average Co-Inventor Count = 2.00
ph-index = 1
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. Volvo Lastvagnar Ab (1 from 513 patents)
1 patent:
1. 7174707 - Regeneration of a filter by the use of a tone generator