Sparapany; John W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sparapany; John W..The latest application filed is for "method of clarifying water using low molecular weight cationic dispersion polymers".
- Sparapany; John W. - Bolingbrook IL
| Patent | Date |
|---|---|
| Method of clarifying water using low molecular weight cationic dispersion polymers Grant 6,398,967 - Sparapany , et al. June 4, 2 | 2002-06-04 |
| Method of clarifying water using low molecular weight cationic dispersion polymers App 20010052501 - Sparapany, John W. ; et al. | 2001-12-20 |
| Method for removing metals from a fluid stream Grant 5,346,627 - Siefert , et al. * September 13, 1 | 1994-09-13 |
| Aminoalkylphosphinates and phosphinic acid-containing polymers therefrom Grant 5,179,173 - Fong , et al. January 12, 1 | 1993-01-12 |
| Superabsorbent polymers Grant 4,921,904 - Sparapany , et al. May 1, 1 | 1990-05-01 |
| Polyhydroxyamic acid polymers from polyacrylic acids Grant 4,868,248 - Sparapany , et al. September 19, 1 | 1989-09-19 |
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