Trevi S.p.A.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 320
 
  
 
E21B EARTH OR ROCK DRILLING 393
 
  
 
E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 313
 
  
 
E02B HYDRAULIC ENGINEERING 117

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0275,583 DRILL RIG AND METHODS FOR DIRECTIONAL DRILLINGMar 25, 15Oct 01, 15[E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9243455 Methods for directing vertical drillingJul 12, 12Jan 26, 16[E21B]
9181673 Tools and methods for constructing large diameter underground pilesOct 11, 12Nov 10, 15[E02D, E21B]
8882397 Methods for waterproofing depositing sitesJun 20, 12Nov 11, 14[B09B, E02B, E02D]
8662795 Head for injecting consolidating pressurised fluid mixtures into the groundJul 12, 11Mar 04, 14[E02D]
5382114 Tunnel excavation apparatusOct 08, 92Jan 17, 95[E21D]
5290125 Tunnel lining method and apparatus suitable for the purposeOct 08, 92Mar 01, 94[E21D]
5152638 Process and apparatus for excavating tunnelsMay 07, 91Oct 06, 92[E21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6354026 Trench rigExpiredJun 29, 99Mar 12, 02[E02F]
5431238 Drilling tool for use in constructing large diameter piles, ventilating shafts and other similar mining worksExpiredJun 08, 94Jul 11, 95[E21B]
5112161 Method for excavating and constructing monolithic continuous straight or circular structural walls and a machine for realizing such a methodExpiredJul 09, 90May 12, 92[E02D]
5104260 Method and apparatus for tunnellingExpiredApr 16, 90Apr 14, 92[E21D]
4848972 Process and apparatus for widening roadwaysExpiredMar 14, 88Jul 18, 89[E02D]

Top Inventors for This Owner

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