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. Exxon Production Research Company (2 from 601 patents)
2 patents:
1. 4574830 - Apparatus for pigging hydrocarbon product flowlines
2. 4528041 - Method for pigging hydrocarbon product flowlines