Average Co-Inventor Count = 4.67
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. Sargent Manufacturing Company (3 from 137 patents)
3 patents:
1. D844414 - Door lock escutcheon
2. D840214 - Door lock escutcheon
3. D738192 - Escutcheon