| Application number | Title of the application | Filing Date | Status |
|---|
| 07/574067 | METAL SCAVENGERS AND WASTE-WATER TREATMENT PROCESSES | Aug 28, 1990 | Abandoned |
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| 07/549398 | COOLING WATER TREATMENT AND COMPOSITION | Jul 4, 1990 | Abandoned |
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| 07/523698 | PAINT SPRAY BOOTH ORGANIC DETACKIFICATION TREATMENT | May 14, 1990 | Abandoned |
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