Average Co-Inventor Count = 3.00
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. Sargent Manufacturing Company (2 from 137 patents)
2 patents:
1. 11851913 - Hook bolt for door lock
2. 11585116 - Anti-ligature lever