Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9315406 | Wastewater treatment systems and methods | Sarah K. Strano, Shannon L. Isovitsch Parks, John R. Smith | 2016-04-19 |
| 9187342 | Method for removing drugs from waste water using neutralized bauxite residue | Shannon L. Isovitsch Parks, David Iwig, John R. Smith, Rajat Ghosh | 2015-11-17 |
| 8673152 | Methods for polishing wastewater utilizing a bed of commingled bauxite residue and iron filings | John R. Smith, Rajat Ghosh, Kevin Kitzman, Jonell Kerkhoff, Robert Horger +4 more | 2014-03-18 |
| 8206586 | Systems for polishing wastewater utilizing natural media filtration | John R. Smith, Rajat Ghosh, Kevin Kitzman, Jonell Kerkhoff, Robert Horger +4 more | 2012-06-26 |
| 5007771 | Method for treating contaminated soil by biological degradation on a sloped surface | Arch J. Merritt, deceased, John R. Smith | 1991-04-16 |