Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4448615 | Method of spot annealing tubing | James L. Cunningham | 1984-05-15 |
| 4428563 | Apparatus for spot annealing tubing | James L. Cunningham | 1984-01-31 |
| 4196607 | Tube reduction apparatus with integral means for sensing wall thickness during a high speed tube drawing operation | Karl J. Youtsey | 1980-04-08 |