Average Co-Inventor Count = 1.09
ph-index = 4
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. Matisa Materiel Industriel S.a. (5 from 31 patents)
2. Canron, Inc. (1 from 61 patents)
6 patents:
1. 4606274 - Travelling railroad tie removal machine
2. 4574704 - Apparatus for guiding a railroad track positioning device
3. 4542697 - Train for laying a new railroad track
4. 4449459 - Pivoting head continuous tamper
5. 4207820 - Mobile apparatus for the renewal and for the construction of railway
6. 4204476 - Mobile device for renewal of railway tracks