Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5840158 | Colloidal silica/polyelectrolyte blends for pulp and paper applications | Bruce A. Keiser, Michio Kobayashi, Maureen B. Nunn, David Picco, Kristine S. Salmen | 1998-11-24 |
| 5667697 | Colloidal silica/polyelectrolyte blends for natural water clarification | Kristine S. Salmen, David Picco, Michio Kobayashi | 1997-09-16 |
| 5620629 | Colloidal silica/polyelectrolyte blends for natural water clarification | Kristine S. Salmen, David Picco, Michio Kobayashi | 1997-04-15 |
| 5401420 | Sulfide ion-selective electrodes for control of chemical feed of organic sulfide products for metal ion precipitation from waste water | Kristine S. Siefert, Wayne M. Carlson | 1995-03-28 |
| 5346627 | Method for removing metals from a fluid stream | Kristine S. Siefert, John W. Sparapany, John H. Collins | 1994-09-13 |
| 5328599 | System using sulfide ion-selective electrodes for control of chemical feed of organic sulfide products for metal ion precipitation from waste water | Kristine S. Siefert, Wayne M. Carlson | 1994-07-12 |