Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479025 | Process for the production of sodium carbonate | Dale Lee Denham, Jr., Rudolph Pruszko | 2002-11-12 |
| 6464736 | Recrystallization process | Dale Lee Denham, Jr., David R. Baughman, Rudolph Pruszko | 2002-10-15 |
| 6284005 | Sodium carbonate recrystallization | Dale Lee Denham, Jr., Rudolph Pruszko, David R. Baughman, Ralph B. Tacoma | 2001-09-04 |
| 6013382 | Apparatus and method for inhibiting the leaching of lead in water | Enzo L. Coltrinari, Jerome P. Downey, Paul B. Queneau | 2000-01-11 |
| 5911959 | Method for purification and production of saline minerals from trona | John S. Wold, Rudolph Pruszko, Roland Schmidt, Dale Lee Denham, Jr. | 1999-06-15 |
| 5736113 | Method for beneficiation of trona | Roland Schmidt, Dale Lee Denham, Jr. | 1998-04-07 |
| 5660735 | Method for removing metals from waste solutions | Enzo L. Coltrinari | 1997-08-26 |
| 5632825 | Apparatus and method for inhibiting the leaching of lead in water | Enzo L. Coltrinari, Jerome P. Downey, Paul B. Queneau | 1997-05-27 |
| 5544859 | Apparatus and method for inhibiting the leaching of lead in water | Enzo L. Coltrinari, Jerome P. Downey, Paul B. Queneau | 1996-08-13 |
| 5536416 | Method for removing metals from a solution | Enzo L. Coltrinari | 1996-07-16 |
| 4606764 | Method of recovering metals from ores using a formate reducing agent | Enzo L. Coltrinari, John E. Litz, David L. Thompson | 1986-08-19 |
| 4192676 | High temperature reduction of copper salts | James E. Reynolds, Duane N. Goens | 1980-03-11 |