Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517677 | Method of improving retention and drainage in a papermaking process using low molecular weight cationic dispersion polymers | Richard P. Cardile, Cathy C. Johnson, Angela P. Zagala | 2003-02-11 |
| 6413433 | Method for dewatering of sludge | Elise E. Maury, Livio Mattucci, Fernando Urbani, Massimo Borelli | 2002-07-02 |
| 6398967 | Method of clarifying water using low molecular weight cationic dispersion polymers | Richard P. Cardile, Cathy C. Johnson, Angela P. Zagala | 2002-06-04 |
| 6238486 | Detectable cationic flocculant and method of using same in industrial food processes | Andrew J. Dunham, Cathy C. Johnson, Kristine S. Salmen, Anthony G. Sommese | 2001-05-29 |
| 5938937 | Hydrophilic dispersion polymers for treating wastewater | John R. Hurlock | 1999-08-17 |
| 5346627 | Method for removing metals from a fluid stream | Kristine S. Siefert, Pek L. Choo, John H. Collins | 1994-09-13 |
| 5338816 | Hydrophobic polyelectrolytes used in removing color | Manian Ramesh, Martha R. Finck, Kristine S. Siefert, Chandrashekar S. Shetty | 1994-08-16 |
| 5283306 | Hydrophobic polyelectrolytes used in removing color | Manian Ramesh, Martha R. Finck, Kristine S. Siefert, Chandrashekar S. Shetty | 1994-02-01 |
| 5179173 | Aminoalkylphosphinates and phosphinic acid-containing polymers therefrom | Dodd W. Fong, Mary A. Kinsella, James F. Kneller | 1993-01-12 |
| 5164095 | Dithiocarbamate polymers | John H. Collins | 1992-11-17 |
| 5143622 | Phosphinic acid-containing polymers and their use in preventing scale and corrosion | Dodd W. Fong, Mary A. Kinsella, James F. Kneller | 1992-09-01 |
| 5137641 | Cationic polymers for sludge dewatering | Bhupati R. Bhattacharyya | 1992-08-11 |
| 5093413 | Cationic polymers for sludge dewatering | Bhupati R. Bhattacharyya, Yvonne O. Dunn | 1992-03-03 |
| 4921904 | Superabsorbent polymers | Dennis P. Bakalik | 1990-05-01 |
| 4868248 | Polyhydroxyamic acid polymers from polyacrylic acids | Dodd W. Fong, Josepha M. Fu | 1989-09-19 |