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. Portec Rail Products, Inc. (1 from 29 patents)
2. Portec - Rmp Division (1 from 4 patents)
2 patents:
1. 5992568 - Rail lubricator mounted to a track vehicle
2. 5687814 - Assembly for applying one or more materials to a rail