Calgon Corp
Calgon CorActive Patents
0
Total Holdings
11
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3941562A | Corrosion inhibition | Expired / Lapsed | 1973-06-04 | 1976-03-02 | 6 | Details |
| US3928196A | Inhibition of scale deposition | Expired / Lapsed | 1973-12-05 | 1975-12-23 | 3 | Details |
| US3885914A | Polymer-zinc corrosion inhibiting method | Expired / Lapsed | 1973-06-04 | 1975-05-27 | 5 | Details |
| US3826767A | Anionic dextran graft copolymers | Expired / Lapsed | 1972-01-26 | 1974-07-30 | 0 | Details |
| US3752761A | Boiler water treatment | Expired / Lapsed | 1972-03-09 | 1973-08-14 | 0 | Details |
| US3751372A | Scale and corrosion control in circulating water using poly… | Expired / Lapsed | 1971-06-18 | 1973-08-07 | 0 | Details |
| US3709815A | Boiler water treatment | Expired / Lapsed | 1971-07-01 | 1973-01-09 | 0 | Details |
| US3663448A | Inhibiting scale deposition | Expired / Lapsed | 1970-09-25 | 1972-05-16 | 0 | Details |
| US3393150A | Methods of scale inhibition | Expired / Lapsed | 1967-08-11 | 1968-07-16 | 0 | Details |
| US3336221A | Method of inhibiting precipitation and scale formation | Expired / Lapsed | 1964-11-05 | 1967-08-15 | 2 | Details |
| US3288640A | Methods of preventing, controlling, and removing alluvium i… | Expired / Lapsed | 1965-01-11 | 1966-11-29 | 2 | Details |