Average Co-Inventor Count = 2.86
ph-index = 5
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 (3 from 14,059 patents)
2. Minnesota Mining and Manufacturing Company (2 from 7,865 patents)
5 patents:
1. D427395 - Bristles of a brush
2. D425269 - Bristles of a brush
3. D424258 - Bristles of a brush
4. 5983434 - Rotary bristle tool with preferentially oriented bristles
5. D378004 - Radial brush segment