| Sequential flotation of sulfide ores DR Shaw, JF Spisak, JP Downey, GE Butts US Patent 4,460,459, 1984 | 50 | 1984 |
| Removal of As (V) and Cr (VI) Ions from Aqueous Solution using a Continuous, Hybrid Field‐Gradient Magnetic Separation Device AK Jha, A Bose, JP Downey Separation Science and Technology 41 (15), 3297-3312, 2006 | 33 | 2006 |
| Apparatus and method for inhibiting the leaching of lead in water EL Coltrinari, JP Downey, WC Hazen, PB Queneau US Patent 6,013,382, 2000 | 30 | 2000 |
| Apparatus and method for inhibiting the leaching of lead in water EL Coltrinari, JP Downey, WC Hazen, PB Queneau US Patent 5,544,859, 1996 | 25 | 1996 |
| High purity silicon-containing products and method of manufacture ND Hinman, JP Downey, GL Fredrickson, AE Blandon US Patent 8,470,279, 2013 | 22 | 2013 |
| Viscosities in the calcium–silicate slag system in the range of 1798 K to 1973 K (1525 C to 1700 C) KJ Schumacher, JF White, JP Downey Metallurgical and Materials Transactions B 46, 119-124, 2015 | 18 | 2015 |
| Method for reducing lead leaching in fixtures JP Hager, JP Downey US Patent 5,904,783, 1999 | 13 | 1999 |
| Process for stabilization of arsenic JP Downey, H Mudgett US Patent 5,762,891, 1998 | 12 | 1998 |
| Process for reducing lead leachate in brass plumbing components JP Downey US Patent 5,454,876, 1995 | 12 | 1995 |
| Removal of halogens from EAF dust by pyrohydrolysis JP Downey, JP Hager Residues and Effluents: Processing and Environmental Considerations, 187-211, 1992 | 12 | 1992 |
| Drying, roasting, and calcining of minerals TP Battle, JP Downey, LD May, BR Davis, NR Neelameggham, ... John Wiley & Sons, 2015 | 10 | 2015 |
| EPD Congress 2014 L Zhang, A Allanore, C Wang, JS Spangenberger, RE Kirchain, ... John Wiley & Sons, 2014 | 9 | 2014 |
| Water treatment method for removal of select heavy metals and nutrient ions through adsorption by magnetite TJ Leitzke, J Downey, RM LaDouceur, DM Margrave, GC Wallace, ... ACS ES&T Water 2 (9), 1584-1592, 2022 | 8 | 2022 |
| Method for producing tungsten carbide G Zucker, J Downey, D Bahr, F Stephens, J Hager US Patent App. 09/779,193, 2002 | 8 | 2002 |
| Synthesis of carbide ceramics via reduction of adsorbed anions on an activated carbon matrix GC Wallace, JP Downey, J Chorney, A Mallard, D Hutchins 8th International Symposium on High-Temperature Metallurgical Processing, 49-57, 2017 | 7 | 2017 |
| Splash technology: applying the design-for-recyclability concept to spent potlining management C Young, J Downey Global Symposium on Recycling, Waste Treatment, and Clean Technology. REWAS …, 2008 | 7 | 2008 |
| A novel approach to determining carrying capacity index through incorporation of hole size and pipe rotation D Rathgeber, E Johnson, P Lucon, R Anderson, B Todd, J Downey, ... SPE Western Regional Meeting, D031S010R002, 2023 | 6 | 2023 |
| Effective separation of magnetite nanoparticles within an industrial-scale pipeline reactor DL Hutchins, JP Downey Separation Science and Technology 55 (15), 2822-2829, 2020 | 6 | 2020 |
| Molten Salt Technology J Downey, S Herrmann EPD Congress 2015, 275, 2016 | 6 | 2016 |
| Pyrometallurgical process for forming tungsten carbide JP Downey, PW Siewert US Patent 5,882,620, 1999 | 6 | 1999 |
