Average Co-Inventor Count = 5.00
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. Hitachi, Ltd. (1 from 42,508 patents)
2. Mann+hummel Gmbh (1 from 1,012 patents)
1 patent:
1. 7805990 - Arrangement of an air mass meter at a flow channel