Philippe Chagnot
13Patents
5h-index
13Co-inventors
63Inventor score
Filing activity: May 1, 1985 → Jan 14, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4650012A | Apparatus for cleaning drills | Fixed Constructions | 10 | Expired |
| US7114271B2 | Cutting tool for digging trenches, and enabling the cutter head to be changed quickly | Fixed Constructions | 9 | Expired |
| US7591329B2 | Auger with a movable gouge for making a borehole | Fixed Constructions | 6 | Active |
| US4800967A | Drilling machine for digging trenches in the ground | Fixed Constructions | 6 | Expired |
| US8020323B2 | Drilling tool | Fixed Constructions | 6 | Active |
| US4971157A | Apparatus for the removal of spoil when making trenches of great depth | Fixed Constructions | 4 | Expired |
| US8632275B2 | Excavation machine with a pivotable kelly bar | Fixed Constructions | 3 | Active |
| US7765723B2 | Cutter head for an excavator machine | Emerging Cross-Sectional Technologies | 3 | Active |
| US6839988B2 | Drilling apparatus for hard ground | Fixed Constructions | 3 | Expired |
| US7591514B2 | Cutter head for an excavator machine | Fixed Constructions | 1 | Active |
| US8128178B2 | Cutter head for a ground cutter machine having rotary cutters | Fixed Constructions | 1 | Active |
| US4989824A | Motor block fastening device for a trenching machine | Fixed Constructions | 0 | Expired |
| US8382397B2 | Hydraulically-driven vibrating device for a vibratory compacting machine | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.