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Patent Protection Ended

No. Patent No. Title
1121. PI 87000517 AN IMPROVED OPTICAL FIBRE ELEMENT.
1122. PI 87000519 HYDROLYSIS PROCESS OF FAT OR OIL.
1123. PI 87000520 DUAL FUEL COMPRESSION IGNITION ENGINE.
1124. PI 87000521 PROCESS FOR PREPARING A CONCENTRATE WHICH IS MISCIBLE WITH HYDROGEN PEROXIDE TO FORM A DISINFECTANT.
1125. PI 87000522 END COMPONENT AND SIDE WALL FOR A CONTAINER.
1126. PI 87000523 SUSPENSION CEILING GRID SYSTEM WITH NARROW-FACED GRID.
1127. PI 87000524 AMIDES OF TEICOPLANIN COMPOUNDS.
1128. PI 87000525 TETRAHYDROFURAN DERIVATIVES, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS FUNGICIDES.
1129. PI 87000526 COBALT CATALYSTS FOR CONVERSION OF METHANOL OR SYNTHESIS GAS
1130. PI 87000527 METHOD OF MANUFACTURING A POLISHING ELEMENT.
1131. PI 87000528 A POLISHING ELEMENT
1132. PI 87000533 BLANCHING OF MUSHROOMS
1133. PI 87000535 ELECTROLYTIC PROCESS FOR MANUFACTURING PURE POTASSIUM PEROXYDIPHOSPHATE.
1134. PI 87000536 MULTIPLE-STAGE COAL SEAM FRACING METHOD
1135. PI 87000537 A BUILDING CONSTRUCTION.
1136. PI 87000538 ELECTROLYTIC PROCESS FOR MANUFACTURING POTASSIUM PEROXYDIPHOSPHATE.
1137. PI 87000539 ANTIBIOTIC A 40926 COMPLEX AND ITS PURE FACTORS PA, PB, A, B, AND BO.
1138. PI 87000540 REFRIGERATING APPARATUS
1139. PI 87000541 NOVEL SILANE DERIVATIVES, PROCESSES FOR THEIR PREPARATION, AGENTS CONTAINING THEM, AND THEIR USE AS PESTICIDES.
1140. PI 87000542 PHARMACEUTICAL FORMULATIONS OF ACID LABILE SUBSTANCES FOR ORAL USE.