Inventor

SMITH JR RICHARD K

US4 patents

⚠️ This page may combine multiple inventors who share the name “SMITH JR RICHARD K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EARTH TOOL CO LLC

1 patent

US6533052B2Mar 18, 2003

Drill bit for impact-assisted directional boring

EARTH TOOL CO LLC27 citations92

VERMEER MFG CO

1 patent

US6668946B2Dec 30, 2003

Backreamer

VERMEER MFG CO39 citations91

KEYSTONE DRILL SERVICES INC

1 patent

US7389833B2Jun 24, 2008

Multi-sectional percussive drill bit assembly

KEYSTONE DRILL SERVICES INC19 citations78

ATLAS COPCO AB

1 patent

US6810974B2Nov 2, 2004

Quick release drill bit for down-hole drills

ATLAS COPCO AB6 citations61