Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5447179 | Non-corrosive double-walled steel tube characterized in that the steel has a face-centered cubic grain structure | Glen A. Gibbs | 1995-09-05 |
| 5297587 | Sealed double wall steel tubing having steel outer surface | — | 1994-03-29 |
| 5222652 | Non-corrosive double walled tube and process for making the same | Glen A. Gibbs | 1993-06-29 |
| 5145103 | Partial elimination of copper plate from steel strip by mechanical means | — | 1992-09-08 |
| 5069381 | Non-corrosive double-walled tube and proces for making the same | Glen A. Gibbs | 1991-12-03 |