Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7850822 | System and method of wet oxidation of a viscose process stream | Chad L. Felch, Richard W. Lehmann, Todd Wingers, Bruce L. Brandenburg | 2010-12-14 |
| 6444130 | Process for rendering waste from electric furnace production of phosphorus non-hazardous | James L. Manganaro, Henry A. Pfeffer, Jay R. Brummer, Bert D. McMunn, Christopher M. Knapp | 2002-09-03 |
| 6110385 | System and method for removing volatile compounds from a waste stream | Russell G. Forbess | 2000-08-29 |
| 5641413 | Removal of nitrogen from wastewaters | Joseph A. Momont | 1997-06-24 |
| 5298174 | Low temperature caustic sulfide wet oxidation process | Joseph A. Momont, David A. Beula | 1994-03-29 |
| 5240619 | Two-stage subcritical-supercritical wet oxidation | Richard W. Lehmann | 1993-08-31 |
| 5082571 | Caustic sulfide wet oxidation process | David A. Beula, Joseph A. Momont | 1992-01-21 |
| 4919815 | Two-stage anaerobic/aerobic treatment process | Thomas J. Vollstedt | 1990-04-24 |
| 4897196 | Two-stage batch wastewater treatment | Thomas J. Vollstedt | 1990-01-30 |
| 4810386 | Two-stage wastewater treatment | Thomas J. Vollstedt | 1989-03-07 |
| 4749492 | Process for recovering regenerated adsorbent particles and separating ash therefrom | John K. Berrigan, Jr., David A. Beula | 1988-06-07 |
| 4626354 | Method for anaerobic treatment of high strength liquors | Clarence A. Hoffman, Michael Mayer | 1986-12-02 |
| 4265747 | Disinfection and purification of fluids using focused laser radiation | Wayne B. Gitchel | 1981-05-05 |
| 4182648 | Oxygen pulping process | Louis A. Pradt | 1980-01-08 |