Average Co-Inventor Count = 2.86
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. Irwin-industrial Tool Company (2 from 291 patents)
2 patents:
1. 8434390 - Flexible threading system
2. 8069984 - Bit holder