Inventor

ASH MICHAEL E

US4 patents

Patents

4 patents

US6895678B2May 24, 2005

Borehole navigation system

DRAPER LAB CHARLES S88 citations95

US7093370B2Aug 22, 2006

Multi-gimbaled borehole navigation system

DRAPER LAB CHARLES S57 citations94

US6918186B2Jul 19, 2005

Compact navigation system and method

DRAPER LAB CHARLES S63 citations93

US6778908B2Aug 17, 2004

Environmentally mitigated navigation system

DRAPER LAB CHARLES S30 citations90