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TREVI SPA
IT9 patents
Top patents by PatentIndex Score
US5112161AMay 12, 1992
Method for excavating and constructing monolithic continuous straight or circular structural walls and a machine for realizing such a method
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US6354026B1Mar 12, 2002
Trench rig
TREVI SPA8 citations72
US5382114AJan 17, 1995
Tunnel excavation apparatus
TREVI SPA11 citations72
US5152638AOct 6, 1992
Process and apparatus for excavating tunnels
TREVI SPA12 citations72
US4848972AJul 18, 1989
Process and apparatus for widening roadways
TREVI SPA12 citations72
US5431238AJul 11, 1995
Drilling tool for use in constructing large diameter piles, ventilating shafts and other similar mining works
TREVI SPA6 citations61
US5290125AMar 1, 1994
Tunnel lining method and apparatus suitable for the purpose
TREVI SPA3 citations61
US5104260AApr 14, 1992
Method and apparatus for tunnelling
TREVI SPA4 citations61
US9181673B2Nov 10, 2015
Tools and methods for constructing large diameter underground piles
TREVI SPA0 citations48