Average Co-Inventor Count = 3.27
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. Sargent Manufacturing Company (2 from 137 patents)
2. Yale Security Inc. (1 from 90 patents)
3 patents:
1. 11624204 - Vertical rod adjustment device
2. 11377887 - Side latch exit device
3. 10161162 - Escutcheon mounting plate