Average Co-Inventor Count = 2.51
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. 3m Innovative Properties Company (4 from 14,076 patents)
4 patents:
1. 12286345 - Filter assembly
2. D896943 - Three dimensional filter frame
3. D877876 - Three dimensional filter frame
4. D875910 - Three dimensional filter frame