Average Co-Inventor Count = 1.00
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. J. Muller Ag (5 from 5 patents)
2. Matisa Materiel Industriel S.a. (1 from 31 patents)
3. J. Muller Ag, Maschineller Geleiseunterhalt (1 from 2 patents)
7 patents:
1. 7861439 - Method and device for renewing a ballast bed
2. 7469479 - Method for measuring tracks
3. 6147746 - Process for optical measurement of relative angles
4. 6014815 - Machine for producing a design track position
5. 5587787 - Process for measuring relative angles
6. 5331745 - Process and apparatus for surveying a railway track for any deviation
7. 5255066 - Measuring device for track building machines