Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12162782 | Process for reducing selenium from ion-exchange brine | Mohan Badami, Michael Taylor, Sebastien Bessenet | 2024-12-10 |
| 11834358 | Process for treating frac flowback and produced water including naturally occurring radioactive material | Charles D. Blumenschein, Hillary Kronebusch, Sarah Petrovich | 2023-12-05 |
| 11008240 | Process for reduction of sulfide from water and wastewater | Srikanth Muddasani, David E. Parker, Bernard Roy Mack | 2021-05-18 |
| 10941046 | Process for silica removal from sodium bicarbonate production wastewater | Bernard Roy Mack | 2021-03-09 |
| 10040709 | Process for reducing the sulfate concentration in a wastewater stream by employing regenerated gibbsite | Charles D. Blumenschein, John Charles Schrader, Robert G. Cook | 2018-08-07 |
| 9890052 | Method for recovering cyanide from a barren solution | Herve Buisson | 2018-02-13 |
| 9828262 | Method for removing calcium, barium, magnesium and strontium from frac flowback | Charles D. Blumenschein, Mark W. Hess | 2017-11-28 |
| 9278875 | Process for reducing the sulfate concentration in a wastewater stream by employing regenerated gibbsite | Charles D. Blumenschein, John Charles Schrader, Robert G. Cook | 2016-03-08 |
| 9085477 | Process for reducing the sulfate concentration in a wastewater stream | Charles D. Blumenschein, Robert G. Cook, John Charles Schrader | 2015-07-21 |
| 9085469 | Process for reducing perchlorate in water | Charles D. Blumenschein | 2015-07-21 |
| 8454831 | Biological and ballasetd flocculation treatment of wastewater | Phillippe Sauvignet, Charles D. Blumenschein | 2013-06-04 |
| 8147695 | Method of removing phosphorus from wastewater | Charles D. Blumenschein, John Charles Schrader | 2012-04-03 |
| 8047287 | Process for recovering heavy oil utilizing one or more membranes | Keith R. Minnich | 2011-11-01 |
| 7909098 | Process for recovering heavy oil utilizing one or more membranes | Keith R. Minnich | 2011-03-22 |
| 7828976 | Method of removing phosphorus from wastewater | Charles D. Blumenschein, John Charles Schrader | 2010-11-09 |
| 7608190 | Process for removing barium from water | Charles D. Blumenschein | 2009-10-27 |
| 7597144 | Process for recovering heavy oil utilizing one or more membranes | Keith R. Minnich | 2009-10-06 |
| 6919031 | Method of treating water and wastewater with a ballasted flocculation process and a chemical precipitation process | Charles D. Blumenschein | 2005-07-19 |