Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5069286 | Method for prevention of well fouling | L. Frederick Roensch, Clarence T. Tanner | 1991-12-03 |
| 4997571 | Method of treating water | L. Fred Roensch, Hershel Zamechek, Eric Dlugosz | 1991-03-05 |
| 4913823 | Process for dissolving and removing scale from aqueous systems | Richard J. Lipinski | 1990-04-03 |
| 4798675 | Corrosion inhibiting compositions containing carboxylated phosphonic acids and sequestrants | Richard J. Lipinski | 1989-01-17 |