Patent · US Expired

Excavation apparatus and method

US7192093B2 · kind B2 · utility

1Cited by
130References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 22, 2005
Grant dateMar 20, 2007
Priority date—
Expiry dateApr 22, 2025

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21C41/16
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

In one embodiment, an excavation method is provided that includes the steps of:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.