| Application number | Title of the application | Filing Date | Status |
|---|
| 06/352006 | METHOD OF MAKING POROUS SILICON CARBIDE BODIES | Feb 23, 1982 | Abandoned |
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| 06/342405 | PIEZOELECTRIC CERAMIC COMPOSITIONS | Jan 24, 1982 | Abandoned |
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| 06/331331 | CONTINUOUS SILICON CARBIDE WHISKER PRODUCTION | Dec 15, 1981 | Abandoned |
| 06/328286 | PROCESS AND APPARATUS FOR PREPARING FINELY-DIVIDED SILICON DIOXIDE HAVING GOOD THIXOTROPIC PROPERTIES | Dec 6, 1981 | Abandoned |
| 06/328287 | PROCESS AND APPARATUS FOR PREPARING FINELY-DIVIDED SILICON DIOXIDE IN GOOD YIELD | Dec 6, 1981 | Abandoned |
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[patent_issue_date] => 1983-11-08
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| 06/322632 | PIEZOELECTRIC CERAMICS FOR ACOUSTIC SURFACE WAVE DEVICES | Nov 17, 1981 | Abandoned |
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