Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8093303 | Process for dewatering a mineral slurry concentrate and increasing the production of a filter cake | Keith C. Hovland, Todd W. Groff, Charles R. Sundberg, Michael P. Lesar, Ruta O. Rakutis | 2012-01-10 |
| 7824553 | Process for dewatering a mineral slurry concentrate and increasing the production of a filter cake | Keith C. Hovland, Todd W. Groff, Charles R. Sundberg, Michael P. Lesar, Ruta O. Rakutis | 2010-11-02 |
| 6310024 | Rust and scale removal composition and process | Jasbir S. Gill | 2001-10-30 |
| 5124046 | Method for controlling calcium carbonate scaling in high pH aqueous systems | Nancy S. Sherwood | 1992-06-23 |
| 4671888 | Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales | — | 1987-06-09 |
| 4589985 | Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales | — | 1986-05-20 |
| 4575425 | Process for controlling calcium oxalate scale over a wide pH range | Bennett P. Boffardi, John P. Farkas | 1986-03-11 |
| 4510059 | Carboxylic functional polyampholytes as silica polymerization retardants and dispersants | Zahid Amjad | 1985-04-09 |
| 4357207 | Low molecular weight cationic polymers as deposit inhibitors and dispersants in black liquor recovery systems | — | 1982-11-02 |