Average Co-Inventor Count = 1.33
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. Other (2 from 832,891 patents)
2. Amsted Industries Inc. (1 from 317 patents)
3 patents:
1. 7226365 - Shaft structure with adjustable and self-regulated stiffness
2. 6090180 - Cupola emission control system and method
3. 5235316 - Vehicle collision avoidance system