| 11535537 |
Process for removal of selenium from water by dithionite ions |
Tarun Kumar Bera, Vaideeswaran Sivaswamy |
2022-12-27 |
$57,439,000 |
| 10822442 |
Rheology-modifying agents for slurries |
J. Matthew Chudomel, Yogesh Bhole |
2020-11-03 |
$116,870,000 |
| 10358363 |
Fluorescent polymers for water treatment |
Tarun Kumar Bera, Deepak Jadhav, Kiran Phatangare, Trishul Artham, Wesley L. Whipple +3 more |
2019-07-23 |
$59,726,000 |
| 9920929 |
Method for reducing slag in biomass combustion |
Robert Dorner, Nandakumar Srinivasan, Hung-Ting Chen |
2018-03-20 |
$16,426,000 |
| 9328003 |
Method of heavy metal removal from water streams |
Deepak A. Musale, Daniel E. Schwarz, Paul J. Zinn, Bruce A. Keiser |
2016-05-03 |
|
| 8753599 |
Corrosion control in and selenium removal from flue gas wet scrubber systems |
Bruce A. Keiser, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa +3 more |
2014-06-17 |
|
| 8747789 |
Metal scavenging polymers |
Paul J. Zinn, William J. Andrews |
2014-06-10 |
|
| 8632742 |
Methods of controlling mercury emission |
Bruce A. Keiser, John V. Meier, Robert Dorner, Jianwei Yuan, Rebecca L. Stiles +2 more |
2014-01-21 |
|
| 8617493 |
Corrosion control in and selenium removal from flue gas wet scrubber systems |
Bruce A. Keiser, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa +3 more |
2013-12-31 |
|
| 8609050 |
Corrosion control in and selenium removal from flue gas wet scrubber systems |
Bruce A. Keiser, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa +3 more |
2013-12-17 |
|
| 8585994 |
Corrosion control in and selenium removal from flue gas wet scrubber systems |
Bruce A. Keiser, John V. Meier, Paul J. Zinn, Jianwei Yuan, Raul Espinosa +3 more |
2013-11-19 |
|
| 8282835 |
Removal of selenium from refinery wastewater |
Daniel E. Schwarz |
2012-10-09 |
|
| 8211389 |
Metal scavenging polymers and uses thereof |
Paul J. Zinn, William J. Andrews |
2012-07-03 |
|
| 8110163 |
Complexation and removal of heavy metals from flue gas desulfurization systems |
Bruce A. Keiser, Anthony G. Sommese, Lars E. Capener, Peter TenEyck, Ralf Wysk |
2012-02-07 |
|
| 6872312 |
Method of using high molecular weight water soluble polymers in membrane bioreactor systems |
Kristine S. Salmen, John H. Collins |
2005-03-29 |
$18,807,000 |
| 6733674 |
Method of dewatering sludge using enzymes |
Jawed M. Sarkar, Manian Ramesh |
2004-05-11 |
|
| 6733673 |
Method of dewatering sludge using enzymes |
Jawed M. Sarkar, Manian Ramesh |
2004-05-11 |
|
| 6662636 |
Method of reducing fouling in filters for industrial water system analytical devices |
Brian Scott Johnson |
2003-12-16 |
|
| 6627719 |
Cationic latex terpolymers for sludge dewatering |
Wesley L. Whipple, Ananthasubramanian Sivakumar |
2003-09-30 |
|
| 6258279 |
Hydrophilic cationic dispersion polymer for paper mill color removal |
Richard E. Metzgar |
2001-07-10 |
|
| 6083404 |
Method of dewatering difficult sludges |
Anthony G. Sommese |
2000-07-04 |
|
| 5961838 |
Amphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste water |
Michael L. Braden, Richard E. Metzgar |
1999-10-05 |
$33,983,000 |
| 5705394 |
Tagged epichlorohydrin-dimethylamine copolymers for use in wastewater treatment |
Sivakumar ANANTHASUBRAMANIAN, Jeffrey R. Cramm |
1998-01-06 |
$5,858,000 |
| 5645799 |
Apparatus for a continuous polymer dosage optimization and waste water analysis system |
Ananthasubramanian Sivakumar, David W. Scheimann |
1997-07-08 |
$12,524,000 |
| 5413719 |
Fluorescent tracer in a water treatment process |
Ananthasubra Sivakumar, Narasimha M. Rao, Scott S. Budd |
1995-05-09 |
$3,882,000 |