Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6926189 | Welding method and apparatus | Charles E. Shanks, Kevin Helle, John Krewer | 2005-08-09 |
| 6474535 | Welding method and apparatus | Charles E. Shanks, Kevin Helle, John Krewer | 2002-11-05 |
| 4683458 | Current-steering digital-to-analog converter for providing bi-directional currents through a load | — | 1987-07-28 |
| 4639619 | Electronic sampler switch | Gary Baldwin, Thomas Hornak, Fred H. Ives | 1987-01-27 |