Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6213208 | Three component separation in an oil well | — | 2001-04-10 |
| 5605172 | Fluid control valve and method for subjecting a liquid to a controlled pressure drop | Mark F. Schubert | 1997-02-25 |