Average Co-Inventor Count = 3.00
ph-index = 3
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. Bettis Corporation (3 from 10 patents)
3 patents:
1. 5385167 - Value testing device
2. 5348271 - Locking device
3. 5329959 - Locking device