Inventor
SELF KELVIN P
US19 patents
⚠️ This page may combine multiple inventors who share the name “SELF KELVIN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHARLES MACHINE WORKS
14 patentsUS6179065B1Jan 30, 2001
System and method for automatically controlling a pipe handling system for a horizontal boring machine
CHARLES MACHINE WORKS123 citations97
US7890235B2Feb 15, 2011
Determination of remote control operator position
CHARLES MACHINE WORKS87 citations95
US7389831B2Jun 24, 2008
Dual-member auger boring system
CHARLES MACHINE WORKS56 citations95
US6550547B1Apr 22, 2003
System and method for automatically controlling a pipe handling system for a horizontal boring machine
CHARLES MACHINE WORKS49 citations94
US7510029B2Mar 31, 2009
System for tracking and maintaining an on-grade horizontal borehole
CHARLES MACHINE WORKS20 citations92
US7216724B2May 15, 2007
Coupling for dual member pipe
CHARLES MACHINE WORKS46 citations92
US7111693B1Sep 26, 2006
System and method for locating and tracking a boring tool
CHARLES MACHINE WORKS39 citations92
US9334627B2May 10, 2016
Determination of remote control operator position
CHARLES MACHINE WORKS20 citations90
US7353889B1Apr 8, 2008
Rotary driven pipe-bursting tool
CHARLES MACHINE WORKS11 citations84
US7896107B2Mar 1, 2011
System for tracking and maintaining on on-grade horizontal borehole
CHARLES MACHINE WORKS8 citations83
US7654340B2Feb 2, 2010
Directional reaming system
CHARLES MACHINE WORKS13 citations83
US7195079B2Mar 27, 2007
Directional reaming system
CHARLES MACHINE WORKS13 citations83
US7373993B2May 20, 2008
System and method for locating and tracking a boring tool
CHARLES MACHINE WORKS7 citations73
US12259094B2Mar 25, 2025
Pipeline following sensor arrangement
CHARLES MACHINE WORKS1 citations63