Average Co-Inventor Count = 4.00
ph-index = 3
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 22,081 patents)
3 patents:
1. 6119688 - Powder dispenser
2. 6029661 - Powder dispenser
3. D406140 - Headset for an intercom