Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11782800 | Methods to automatically correct and improve system recovery and replication processes | Ian Cameron, Scott Sterry | 2023-10-10 |
| 8496815 | Iodine recovery systems | Terry Brix | 2013-07-30 |
| 6979429 | Method for solubilizing metal values | Robert A. Hard, Patrick M. Brown | 2005-12-27 |
| 5246684 | Method of extracting zinc from brines | Patrick M. Brown, Jerry Dobson | 1993-09-21 |
| 5232490 | Oxidation/reduction process for recovery of precious metals from MnO.sub.2 ores, sulfidic ores and carbonaceous materials | Fredrick N. Bender, Robert Elder | 1993-08-03 |
| 5078786 | Process for recovering metal values from jarosite solids | Mark Allen Peters, Wayne W. Hazen | 1992-01-07 |
| 4743271 | Process for producing a clean hydrocarbon fuel | James K. Kindig | 1988-05-10 |
| 4695290 | Integrated coal cleaning process with mixed acid regeneration | James K. Kindig | 1987-09-22 |
| D290334 | Rescue tool | — | 1987-06-16 |
| 4618480 | Recovery of alumina values from alunite ore | Wayne W. Hazen, David L. Thompson, Nicholas J. Lombardo, Paul B. Queneau, John P. Hager | 1986-10-21 |
| 4556422 | Process for the recovery of lead and silver chlorides | Alan Williams | 1985-12-03 |
| 4428912 | Regeneration of chloridizing agent from chlorination residue | Alan Williams | 1984-01-31 |
| 4423012 | Manganese and zinc solvent extraction process | Nicholas J. Lombardo | 1983-12-27 |
| 4288414 | Process for chlorinating clays and bauxite | Alan Williams | 1981-09-08 |
| 4276084 | Hydrometallurgical process for the recovery of lead | Alan Williams | 1981-06-30 |
| 4244927 | Process for recovering arsenic compounds by sodium hydroxide leaching | Enzo L. Coltrinari | 1981-01-13 |
| 4244734 | Process for recovering metal values from materials containing arsenic | Enzo L. Coltrinari | 1981-01-13 |
| 4244735 | Chloride leach process for recovering metal values in the presence of arsenic | Enzo L. Coltrinari | 1981-01-13 |
| 4192676 | High temperature reduction of copper salts | Wayne C. Hazen, Duane N. Goens | 1980-03-11 |
| 4182308 | Solar energy collector | — | 1980-01-08 |