Average Co-Inventor Count = 3.00
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. The Johnson Corporation (2 from 22 patents)
2 patents:
1. 4254972 - Stainless steel rotary joint
2. D258076 - Rotary joint