Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8857860 | Coupling assembly with corrosion barrier for GRE-lined premium threaded pipe | Joseph A. Schwalbach | 2014-10-14 |
| 6349748 | Insulated tubing | John Dodds, Michael Posson, Joseph A. Schwalbach | 2002-02-26 |