Average Co-Inventor Count = 2.00
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. Safe Tech, Inc. (1 from 9 patents)
2. Brown Coal Corporation (1 from 1 patent)
2 patents:
1. 4543104 - Coal treatment method and product produced therefrom
2. 4013519 - Recovery method for polyester still bottoms