Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35473 | Sludge flow measuring system | Harry K. Crow, Thomas M. Anderson, Richard T. Atherton, Berthold A. Fehn | 1997-03-11 |
| 5346368 | Sludge flow measuring system | Harry K. Crow, Thomas M. Anderson, Richard T. Atherton, Berthold A. Fehn | 1994-09-13 |
| 5257912 | Sludge flow measuring system | Harry K. Crow, Thomas M. Anderson, Richard T. Atherton, Berthold A. Fehn | 1993-11-02 |
| 5106272 | Sludge flow measuring system | Harry K. Crow, Thomas M. Anderson, Richard T. Atherton, Berthold A. Fehn | 1992-04-21 |