ML

Michael D. Liggett

General Motors: 2 patents #6,250 of 18,328Top 35%
Overall (All Time): #2,314,974 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5022431 Exhaust gas recirculation valve assembly Thaddeus J. Grey, Raymond Eduardo Kirton, George A. English, Karen M. Meyer, Charles J. Barker 1991-06-11
4998707 Exhaust gas recirculation valve assembly Karen M. Meyer, Robert J. Conklin, Charles J. Barker 1991-03-12