| Application number | Title of the application | Filing Date | Status |
|---|
| 07/415180 | COMPOSITE CERAMIC ARTICLES AND METHODS OF MAKING THE SAME | Sep 28, 1989 | Abandoned |
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| 07/415217 | SINTERED BODY OF CONDUCTIVE SIALON AND HEATING ELEMENT MADE THEREOF | Sep 11, 1989 | Abandoned |
| 07/405780 | PROCESS FOR PRODUCING ALUMINUM NITRIDE SINTERED BODY WITH HIGH THERMAL CONDUCTIVITY | Sep 10, 1989 | Issued |
| 07/401279 | ENAMEL FRITS FOR ACID-RESISTANT ONE-COAT ENAMELLINGS ON UNPICKLED STEELS | Aug 30, 1989 | Abandoned |
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| 90/001813 | METHOD OF CUTTING USING SILICON CARBIDE WHISKER REINFORCED CERAMIC CUTTING TOOLS | Jul 25, 1989 | Issued |
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