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. Ingersoll-rand Company (2 from 1,201 patents)
2. Carrier Corporation (1 from 3,953 patents)
3 patents:
1. D402746 - Portable air cleaner
2. D393580 - Impact wrench
3. D388678 - Impact wrench