Average Co-Inventor Count = 3.00
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. Minnesota Mining and Manufacturing Company (2 from 7,865 patents)
2 patents:
1. 5286534 - Process for plasma deposition of a carbon rich coating
2. 5232791 - Magnetic recording medium having a carbon rich coating