Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10501353 | Monitoring and control of unit operations for generating steam from produced water | Kevin Paul McEvoy, Anthony Yu-Chung Ku, Carl Vess, Abdul Rafi Khwaja, Matthew Alan Petersen | 2019-12-10 |
| 9731989 | Chemical oxidation or electromagnetic treatment in SAGD operations | Brian Christopher Moore, Vasile Bogdan Neculaes, Abdul Rafi Khwaja, Matthew Alan Petersen | 2017-08-15 |
| 9593032 | Produced water treatment to remove organic compounds | Brian Christopher Moore, Hope Matis, William Leonard Kostedt, IV, Matthew Alan Petersen, Jeffrey Lynn Schworm +1 more | 2017-03-14 |
| 8968430 | Dewatering system and process for increasing the combined cycle efficiency of a coal powerplant | Samuel David Draper, Chandrashekhar Sonwane | 2015-03-03 |
| 8940169 | Spiral wound membrane element and treatment of SAGD produced water or other high temperature alkaline fluids | Phillip Goebel, David Allen Olson, Abdul Rafi Khwaja | 2015-01-27 |
| 8858802 | Deoiling of SAGD produce water | Abdul Rafi Khwaja | 2014-10-14 |
| 8784659 | Method for controlling microbial biofilm in aqueous systems | Wilson K. Whitekettle, Gloria Jean Tafel, Qing Zhao, Linna Wang, Dorothy Reynolds +2 more | 2014-07-22 |
| 7931813 | Process for the reduction of biofouling using electric fields | Thangavelu Asokan, Setu Chokshi, Yuseph Montasser, Yatin Tayalia | 2011-04-26 |
| 7157062 | Inhibition of the depletion of metal values from pregnant lixiviant solutions | Libardo A. Perez | 2007-01-02 |
| 5851437 | Method and composition for neutralizing static electricity | Bobby J. Brown, Bruce K. Fillipo, Gregory J. Pomrink | 1998-12-22 |
| 5668219 | Cationic block polymer agglomeration agents for mineral bearing ores | Wen P. Liao, Donald Carroll Roe | 1997-09-16 |
| 5512636 | Cationic graft polymer agglomeration agents for mineral bearing ores | Wen P. Liao, Donald Carroll Roe | 1996-04-30 |
| 5500213 | Gelled biocidal treatments | Donald Carroll Roe | 1996-03-19 |
| 5472675 | Polyvinyl alcohol agglomeration agents for mineral bearings ores | Donald Carroll Roe | 1995-12-05 |
| 5401311 | Method for removing deposits from cooling water systems | Donald T. Freese, Raymond Post | 1995-03-28 |
| 5391370 | Gelled peg biocidal treatments | Donald Carroll Roe | 1995-02-21 |
| 5391369 | Gelled polyvinyl alcohol biocidal treatments | Donald Carroll Roe | 1995-02-21 |
| 5266217 | Gelled biocidal treatments | Donald Carroll Roe | 1993-11-30 |
| 5266218 | Gelled biocidal treatments | Donald Carroll Roe | 1993-11-30 |
| 5211920 | Agglomerating agents for clay containing ores | — | 1993-05-18 |
| 5194174 | Methods for suppressing fugitive dust emissions | Donald Carroll Roe | 1993-03-16 |
| 5186915 | Heap leaching agglomeration and detoxification | — | 1993-02-16 |
| 5112582 | Agglomerating agents for clay containing ores | — | 1992-05-12 |
| 5079036 | Method of inhibiting freezing and improving flow and handleability characteristics of solid, particulate materials | Donald Carroll Roe | 1992-01-07 |
| 5077022 | Agglomerating agents for clay containing ores | — | 1991-12-31 |