Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517677 | Method of improving retention and drainage in a papermaking process using low molecular weight cationic dispersion polymers | John W. Sparapany, Cathy C. Johnson, Angela P. Zagala | 2003-02-11 |
| 6398967 | Method of clarifying water using low molecular weight cationic dispersion polymers | John W. Sparapany, Cathy C. Johnson, Angela P. Zagala | 2002-06-04 |