| Application number | Title of the application | Filing Date | Status |
|---|
| 07/341996 | RADIATION-SHIELDING GLASSES PROVIDING SAFETY AGAINST ELECTRICAL DISCHARGE AND BEING RESISTANT TO DISCOLORATION | Apr 23, 1989 | Abandoned |
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| 07/316397 | MOLDED ARTICLES FORMED OF SILICON NITRIDE BASED CERAMIC AND PROCESS FOR PRODUCING SAME | Feb 26, 1989 | Abandoned |
| 07/314887 | PROCESS FOR PRODUCING A CERAMIC PREFORM | Feb 23, 1989 | Abandoned |
| 07/308420 | METHOD OF MAKING CERAMIC COMPOSITE ARTICLES WITH SHAPE REPLICATED SURFACES AND ARTICLES OBTAINED THEREBY | Feb 7, 1989 | Abandoned |
| 07/297877 | LIGHTWEIGHT OIL AND GAS WELL PROPPANTS AND METHODS FOR MAKING AND USING SAME | Jan 16, 1989 | Issued |
| 07/297987 | LIGHTWEIGHT CERAMIC MATERIAL FOR BUILDING PURPOSES, PROCESS FOR THE PRODUCTION THEREOF AND THE USE THEREOF | Jan 16, 1989 | Abandoned |
| 07/297986 | HIGHLY POROUS CERAMIC MATERIAL FOR ABSORPTION AND ADSORPTION PURPOSES, PARTICULARLY FOR ANIMAL LITTER/BEDDING, PROCESS FOR THE PRODUCTION THEREOF AND THE USE THEREOF | Jan 16, 1989 | Abandoned |
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