Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11123816 | Aluminum alloy to steel welding process | David R. Sigler, James G. Schroth, Blair E. Carlson, David Yang | 2021-09-21 |
| 10981243 | Multi-step direct welding of an aluminum-based workpiece to a steel workpiece | David R. Sigler, Blair E. Carlson, Michael J. Karagoulis | 2021-04-20 |
| 10166627 | Aluminum alloy to steel welding process | David R. Sigler, James G. Schroth, Blair E. Carlson, David Yang | 2019-01-01 |
| 9999938 | Multi-step direct welding of an aluminum-based workpiece to a steel workpiece | David R. Sigler, Blair E. Carlson, Michael J. Karagoulis | 2018-06-19 |