Assignee
MACGREGOR DOUGLAS
US4 patents
Top patents by PatentIndex Score
US5178595AJan 12, 1993
Walking device to assist those with an injury to a lower limb
MACGREGOR DOUGLAS63 citations94
US4350042ASep 21, 1982
Time-depth integrator
MACGREGOR DOUGLAS9 citations71
US5047074ASep 10, 1991
Purging of nitrogen from natural gas
MACGREGOR DOUGLAS13 citations65
US8439684B2May 14, 2013
Method of teaching reading
MACGREGOR DOUGLAS5 citations63