Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5931191 | Flow control valve for passing two fluids in opposite directions | Frank A. Taube, Sr., John D. Taube | 1999-08-03 |
| 5913328 | Flow control valve with one piece plug/valve tube sleeve assembly | John D. Taube, Eric Geile | 1999-06-22 |
| 5806558 | Flow control valve with impeller having spherical edge | — | 1998-09-15 |
| 4522504 | Linear in-line mixing system | — | 1985-06-11 |