Average Co-Inventor Count = 4.00
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 (3 from 14,059 patents)
3 patents:
1. 12245648 - Maintenance-free respirator that has concave portions on opposing sides of mask top section
2. 11877604 - Maintenance-free respirator that has concave portions on opposing sides of mask top section
3. 10827787 - Maintenance-free respirator that has concave portions on opposing sides of mask top section