Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10766095 | Mating electrodes for resistance spot welding of aluminum workpieces to steel workpieces | Hui Wang, Blair E. Carlson, David R. Sigler | 2020-09-08 |
| 10682724 | Resistance spot welding of aluminum-to-aluminum, aluminum-to-steel, and steel-to-steel in a specified sequence and using a cover | David R. Sigler, Blair E. Carlson | 2020-06-16 |
| 10675704 | Alternately direct resistance spot welding of Al-to-Al, al-to-steel, and steel-to-steel with welding electrode having oxide-disrupting structural features | David R. Sigler, Blair E. Carlson | 2020-06-09 |
| 10610956 | Welding electrode cutting tool and method of using the same | David R. Sigler, Blair E. Carlson, James G. Schroth | 2020-04-07 |