Chang; Kelvin Y.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Kelvin Y..The latest application filed is for "method for prevention of well fouling".
- Chang; Kelvin Y. - Solon OH
| Patent | Date |
|---|---|
| Method for prevention of well fouling Grant 5,069,286 - Roensch , et al. December 3, 1 | 1991-12-03 |
| Method of treating water Grant 4,997,571 - Roensch , et al. March 5, 1 | 1991-03-05 |
| Process for dissolving and removing scale from aqueous systems Grant 4,913,823 - Lipinski , et al. April 3, 1 | 1990-04-03 |
| Corrosion inhibiting compositions containing carboxylated phosphonic acids and sequestrants Grant 4,798,675 - Lipinski , et al. January 17, 1 | 1989-01-17 |
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