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 (2 from 14,076 patents)
2. Minnesota Mining and Manufacturing Company (1 from 7,865 patents)
3 patents:
1. 6119688 - Powder dispenser
2. 6029661 - Powder dispenser
3. D406140 - Headset for an intercom