Average Co-Inventor Count = 1.00
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. Stelco Inc. (2 from 32 patents)
2 patents:
1. 6802914 - Stress relieved grinding ball having hard outer shell
2. 6632303 - Stress relieved grinding ball having hard outer shell