Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5997050 | Double cone coupling nipple of a steel tubing and method of making same | Günter Fleckenstein, Thomas R. Schmitz, Manfred Meyer | 1999-12-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5997050 | Double cone coupling nipple of a steel tubing and method of making same | Günter Fleckenstein, Thomas R. Schmitz, Manfred Meyer | 1999-12-07 |