Average Co-Inventor Count = 3.83
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. Other (1 from 832,718 patents)
2. Packer Engineering, Inc. (1 from 5 patents)
3. National Casting Incorporated (1 from 1 patent)
3 patents:
1. 8046946 - Shot-counting device for a firearm
2. 7410569 - Filtration system for metalworking fluids
3. 6129227 - Lightweight knuckle for a railroad car coupler