Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597859 | Seed process for salt dispersion polymer | John R. Hurlock | 1997-01-28 |
| 5589075 | Use of silicon containing polyelectrolytes in wastewater treatment | Ananthasubramanian Sivakumar, John H. Collins | 1996-12-31 |
| 5560832 | Demulsification of oily waste waters using silicon containing polymers | Ananthasubramanian Sivakumar | 1996-10-01 |
| 5527431 | Silicon polyelectrolytes for pitch deposit control | Chandrashekar S. Shetty | 1996-06-18 |
| 5510439 | Vinyl alkoxysilane copolymer polyelectrolytes for pitch deposit control | Chandrashekar S. Shetty | 1996-04-23 |
| 5478477 | Use of alginates to treat bauxite red mud | John D. Kildea, Robert P. Mahoney | 1995-12-26 |
| 5476522 | Method for dewatering coal tailings using DADMAC/vinyl trialkoxysilane copolymers as a coagulant | E. Michael Kerr | 1995-12-19 |
| 5458849 | Prevention of cracking and blistering of refinery steels by cyanide scavenging in petroleum refinery processes | Veronica K. Majestic | 1995-10-17 |
| 5451326 | Chemical treatment of food processing wastes using dispersion polymers | Wayne M. Carlson | 1995-09-19 |
| 5435922 | Method of removing color from waste water using an aqueous dispersion polymer | Chandrashekar S. Shetty | 1995-07-25 |
| 5429749 | Polymers for treatment of food processing wastes | Daniel K. Chung, Chandrashekar S. Shetty | 1995-07-04 |
| 5415785 | Method for removing a cyanide contaminant from refinery waste water streams | Michael L. Braden, Veronica K. Braden, Everett C. Phillips | 1995-05-16 |
| 5397708 | Method for detection of sulfides | Ronald B. Lessard | 1995-03-14 |
| 5387393 | Prevention of cracking and blistering of refinery steels by cyanide scavenging in petroleum refining processes | Veronica K. Braden | 1995-02-07 |
| 5338816 | Hydrophobic polyelectrolytes used in removing color | John W. Sparapany, Martha R. Finck, Kristine S. Siefert, Chandrashekar S. Shetty | 1994-08-16 |
| 5332507 | Recovery of oil from waste oil fluids | Michael L. Braden, Wayne M. Carlson, Ananthasubramanian Sivakumar | 1994-07-26 |
| 5330546 | Hydrophobic polyelectrolyte coagulants for concentrating coal tailings | Ram A. Venkatadri, Lawerence J. Connelly, Jeffrey R. Cramm | 1994-07-19 |
| 5330650 | Dispersion polymers for oil field water clarification | Norman Edward Byrne, Robert A. Marble | 1994-07-19 |
| 5314627 | Hydrophobic polyelectrolytes used in color removal | Chandrashekar S. Shetty, Martha R. Finck | 1994-05-24 |
| 5292793 | Hydrophobic polyelectrolytes used in color removal | Chandrashekar S. Shetty, Martha R. Finck | 1994-03-08 |
| 5283306 | Hydrophobic polyelectrolytes used in removing color | John W. Sparapany, Martha R. Finck, Kristine S. Siefert, Chandrashekar S. Shetty | 1994-02-01 |
| 5246547 | Hydrophobic polyelectrolyte coagulants for the control of pitch in pulp and paper systems | Martha R. Finck, Carol S. Greer | 1993-09-21 |
| 5200089 | Pulp and paper mill wastewater color removal | Kristine S. Siefert, Martha R. Finck, Chandrashekar S. Shetty | 1993-04-06 |