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. Ethyl Corporation (2 from 1,362 patents)
2 patents:
1. 4153206 - Crushing process for recyclable plastic containers
2. 3940001 - Recyclable plastic containers