Average Co-Inventor Count = 2.67
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. Harman International Industries, Inc. (2 from 1,925 patents)
2 patents:
1. 9525929 - Variable occlusion headphones
2. 9258678 - Closed loop athlete training system