Average Co-Inventor Count = 5.46
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. Colas S.a. (2 from 10 patents)
2 patents:
1. 5279500 - Apparatus for spreading a road surfacing material
2. 5178486 - Device for spreading a fluid substance, and machine permitting the