Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10010966 | Electrode for resistance spot welding of dissimilar metals | David Yang, David R. Sigler, Blair E. Carlson, James G. Schroth | 2018-07-03 |
| 9999938 | Multi-step direct welding of an aluminum-based workpiece to a steel workpiece | David R. Sigler, Blair E. Carlson, Yelena Myasnikova | 2018-06-19 |
| 9969026 | Weld schedule for resistance spot welding of aluminum alloy workpieces | David R. Sigler | 2018-05-15 |
| 9925617 | Electrode for spot welding | David R. Sigler, James G. Schroth | 2018-03-27 |
| 9914599 | Systems, processes and apparatuses for automated handling of non-ferrous metal objects | Chandra S. Namuduri, Thomas W. Nehl, James J. Abramczyk, Kenneth J. Shoemaker, James S. Dorenbecker | 2018-03-13 |
| 9908199 | Programmable polarity module for DC resistance spot welding | David R. Sigler | 2018-03-06 |
| 9737956 | Resistance spot welding thin gauge steels | David Yang, David R. Sigler | 2017-08-22 |
| 9682439 | Welding electrode with contoured face | David R. Sigler | 2017-06-20 |
| 9676065 | Resistance spot welding of aluminum to aluminum and steel to steel | David R. Sigler | 2017-06-13 |
| 9440305 | Method of resistance spot welding aluminum alloy workpieces | David R. Sigler | 2016-09-13 |
| 9346118 | Forming and re-forming welding electrodes with contoured faces | David R. Sigler | 2016-05-24 |
| 8927894 | Weld electrode for attractive weld appearance | David R. Sigler, James G. Schroth | 2015-01-06 |
| 8833215 | Cutting tool for forming and re-forming welding electrodes with contoured faces | David R. Sigler | 2014-09-16 |
| 8525066 | Electrode for spot welding | David R. Sigler, James G. Schroth | 2013-09-03 |
| 8436269 | Welding electrode with contoured face | David R. Sigler | 2013-05-07 |
| 8415582 | Method for monitoring and maintaining a resistance welding apparatus | Pei-Chung Wang, Samuel P. Marin, Daniel C. Hutchinson | 2013-04-09 |
| 8274010 | Welding electrode with contoured face | David R. Sigler | 2012-09-25 |
| 8222560 | Weld electrode for attractive weld appearance | David R. Sigler, James G. Schroth | 2012-07-17 |
| 7265313 | Method and apparatus for improved cooling of resistance welding cap | Robin Stevenson, Pei-Chung Wang, Hai-Lung Tsai | 2007-09-04 |