Average Co-Inventor Count = 5.83
ph-index = 1
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. 3M Innovative Properties Company (2 from 14,087 patents)
2 patents:
1. D548979 - Broom
2. D549410 - Floor sweeper