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Patent Protection Ended

No. Patent No. Title
19681. PI 98004162 DEVICE FOR READING FROM AND/OR WRITING TO OPTICAL RECORDING MEDIA
19682. PI 98004164 INTERNAL COMBUSTION ENGINES
19683. PI 98004168 WATER EMULSIONS OF FISCHER-TROPSCH LIQUIDS
19684. PI 98004169 METHOD FOR PRODUCING ACRYLIC ACID AND METHACRYLIC ACID
19685. PI 98004175 METHOD FOR THE FRACTIONAL CONDENSATION OF A HOT GAS MIXTURE CONTAINING ACRYLIC ACID OR METHACRYLIC ACID AND HAVING A HIGH PROPORTION OF NON-CONDENSABLE CONSTITUENTS
19686. PI 98004177 AN ANALOG-TO-DIGITAL CONVERTER
19687. PI 98004180 A FLUOROMETRIC METHOD FOR INCREASING THE EFFICIENCY OF THE RINSING AND WATER RECOVERY PROCESS IN THE MANUFACTURE OF SEMICONDUCTOR CHIPS.
19688. PI 98004182 TOUGHENED POLYMER BLENDS
19689. PI 98004183 HYDROFORMYLATION PROCESS USING NOVEL PHOSPHITE-METAL CATALYST SYSTEM
19690. PI 98004184 PROCESS FOR POLYMERIZING ETHYLENE
19691. PI 98004186 A METHOD FOR TREATING AN ORGANIC WASTE WATER
19692. PI 98004187 COMMON ACCESS BETWEEN A MOBILE COMMUNICATIONS NETWORK AND AN EXTERNAL NETWORK WITH SELECTABLE PACKET-SWITCHED AND CIRCUT-SWITCHED AND CIRCUIT-SWITCHED SERVICES
19693. PI 98004191 SCROLL COMPRESSOR WITH REVERSE OFFSET AT WRAP TIPS
19694. PI 98004193 EVAPORATIVE CONDENSING APPARATUS
19695. PI 98004195 A POST-FILTERED (ALGEBRAIC SUM) FOR CONTROLLING A PHASE LOCKED LOOP MODULATOR.
19696. PI 98004197 CYCLOPENTAPHENANTHRENYL TITANIUM COMPLEXES AND POLYMERIZATION PROCESS
19697. PI 98004203 CROSSLINKABLE FABRIC CARE COMPOSITIONS
19698. PI 98004207 METHOD FOR THE SYNTHESIS OF QUINOLINE DERIVATIVES
19699. PI 98004210 COATING SOLUTION FOR FORMING A SELECTIVELY TRANSMITTING FILM, A SELECTIVELY TRANSMITTING FILM AND A SELECTIVELY TRANSMITTING MULTILAYER FILM
19700. PI 98004212 WATER-DISINTEGRATABLE FIBROUS SHEET HAVING LAYERED STRUCTURE AND WIPING SHEET COMPRISING THE SAME