Average Co-Inventor Count = 3.00
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. Aktieselskabet Bruel & Kjaer (1 from 4 patents)
1 patent:
1. 4910838 - Method for providing a desired sound field as well as an ultrasonic