Assignee

MERCER JOHN

US3 patents

Top patents by PatentIndex Score

US5155442AOct 13, 1992

Position and orientation locator/monitor

MERCER JOHN176 citations96

US8142104B2Mar 27, 2012

Dowel sleeves

MERCER JOHN25 citations87

US9592842B1Mar 14, 2017

Railroad locomotive control system having switch position indication and method of use

MERCER JOHN5 citations71