Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9839971 | Resistance spot welding steel and aluminum workpieces with hot welding electrode at aluminum workpiece | David R. Sigler, Thomas A. Perry | 2017-12-12 |
| 9731379 | Welding light metal workpieces by reaction metallurgy | David R. Sigler, Xiaohong Q. Gayden, Yen-Lung Chen | 2017-08-15 |
| 9568062 | Inserts with holes for damped products and methods of making and using the same | Michael J. Walker, Michael D. Hanna | 2017-02-14 |
| 9534651 | Method of manufacturing a damped part | Michael D. Hanna, Mohan Sundar, Thomas C. Zebehazy | 2017-01-03 |