Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5927720 | Two-piece labyrinth seal for a centrifugal compressor balance piston | Thomas M. Zinsmeyer | 1999-07-27 |
| 5915920 | Roller positioning system or variable pipe diffuser | — | 1999-06-29 |