Average Co-Inventor Count = 2.67
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. Minnesota Mining and Manufacturing Company (2 from 7,865 patents)
2 patents:
1. 5983434 - Rotary bristle tool with preferentially oriented bristles
2. D378003 - Molded radial brush