Average Co-Inventor Count = 1.80
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. Peerless Chain Company (3 from 22 patents)
3 patents:
1. 5068948 - Traction cable
2. 4825923 - Traction cable
3. 4801116 - Merchandise hanger assembly