Average Co-Inventor Count = 3.75
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. Brush Wellman, Inc. (2 from 55 patents)
2 patents:
1. 6527512 - Mud motor
2. 6371224 - Threaded spacer