Average Co-Inventor Count = 2.00
ph-index = 1
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. Tetra Tech, Inc. (2 from 42 patents)
2 patents:
1. 11131074 - Vertical manhole apparatus and method for providing access to leachate collection pipes in a landfill
2. 10753062 - Vertical manhole apparatus and method for providing access to leachate collection pipes in a landfill