DS

David R. Sigler

General Motors: 6 patents #58 of 1,934Top 3%
Overall (2017): #22,411 of 506,227Top 5%
6
Patents 2017

Issued Patents 2017

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9839971 Resistance spot welding steel and aluminum workpieces with hot welding electrode at aluminum workpiece James G. Schroth, Thomas A. Perry 2017-12-12
9737956 Resistance spot welding thin gauge steels David Yang, Michael J. Karagoulis 2017-08-22
9731379 Welding light metal workpieces by reaction metallurgy James G. Schroth, Xiaohong Q. Gayden, Yen-Lung Chen 2017-08-15
9682439 Welding electrode with contoured face Michael J. Karagoulis 2017-06-20
9676065 Resistance spot welding of aluminum to aluminum and steel to steel Michael J. Karagoulis 2017-06-13
9662738 Welding electrode and method of forming a resistance spot weld joint Sampath K. Vanimisetti 2017-05-30