Expiring Patents

Every day patents are expiring. Under the current Patent Act, patents last a maximum of 20 years from the date of filing. There are also ‘Old Act’ patents which expiry at the later of 20 years from the date of filing or 17 years from the date of issue.

The first ‘New Act’ patents expired on October 2, 2009. ‘Old Act’ patents are still expiring based on the issued date.

Most patent applications do not become patents, and many patents do not survive to the end of their terms. Every day, patents are becoming dead for failure to pay maintenance fees or other deficiencies.

This list is automatically generated. Do not rely on any of the information on this website and webpage and confirm all information independently.

Patents Expiring This Week

Patent Number Title Owner Expiry Date
2133240 METHOD AND APPARATUS FOR SEALING THE JUNCTURE BETWEEN A VERTICAL WELL AND ONE OR MORE HORIZONTAL WELLS USING DEFORMABLE SEALING MEANS BAKER HUGHES INCORPORATED (United States of America) 2014-09-29
2133246 MULTIPLE DATA SURFACE OPTICAL DATA STORAGE SYSTEM MITSUBISHI DENKI KABUSHIKI KAISHA (Japan) 2014-09-29
2133256 AUTOMATIC VALVE ASSEMBLY ZURN INDUSTRIES, INC. (United States of America) 2014-09-29
2133258 INTEGRAL SUSPENSION SYSTEM TRANE INTERNATIONAL INC. (United States of America) 2014-09-29
2133265 ANAEROBIC AND AEROBIC INTEGRATED SYSTEM FOR BIOTREATMENT OF TOXIC WASTES (CANOXIS) GUIOT, SERGE R. (Canada) 2014-09-29
2133275 MULTI-CHANNEL DUCT FOR POWER AND TEL/COMM CONDUCTORS HUBBELL INCORPORATED (United States of America) 2014-09-29
2133278 PESTICIDAL AQUEOUS SUSPENSION CONCENTRATE AND A PROCESS FOR PRODUCTION THEREOF NIHON NOHYAKU CO., LTD. (Japan) 2014-09-29
2133279 FLUOROALKYL-SUBSTITUTED FERROCENYL DIPHOSPHINES AS LIGANDS FOR HOMOGENEOUS CATALYSTS SYNGENTA PARTICIPATIONS AG (Switzerland) 2014-09-29
2133286 APPARATUS AND METHOD FOR MEASURING A BOREHOLE HALLIBURTON COMPANY (United States of America) 2014-09-29
2133296 MEASURING THERMODYNAMIC CHARACTERISTICS OF A HYDROCARBON SAMPLE ELF AQUITAINE PRODUCTION (France) 2014-09-29
2133297 METHOD FOR EVALUATING THE DAMAGE OF THE ROCK STRUCTURE SURROUNDING A WELL ELF AQUITAINE PRODUCTION (France) 2014-09-29
2133299 TRI-DIMENSIONAL NON-WOVEN FABRIC FOR USE AS A SKIN-CONTACTING COVER LAYER OF A SANITARY ABSORBENT ARTICLE, A METHOD FOR MANUFACTURING THE NON-WOVEN FABRIC AND A SANITARY ARTICLE UTILIZING SAME JOHNSON & JOHNSON INC. (Canada) 2014-09-29
2148580 ULTRA-WIDE FIELD OF VIEW, BROAD SPECTRAL BAND HELMET VISOR DISPLAY OPTICAL SYSTEM RAYTHEON COMPANY (United States of America) 2014-09-29
2150368 PRECIPITATED SILICA RHONE-POULENC CHIMIE (France) 2014-09-29
2150369 PRECIPITATED SILICA RHONE-POULENC CHIMIE (France) 2014-09-29
2172053 PROCESS (I) FOR THE PREPARATION OF POWDERED MEDICAMENT ASTRA AKTIEBOLAG (Sweden) 2014-09-29
2172055 PROCESS (II) FOR THE PREPARATION OF POWDERED MEDICAMENT ASTRA AKTIEBOLAG (Sweden) 2014-09-29
2173156 A METHOD FOR CHARACTERIZING POLYMER MOLECULES OR THE LIKE WISCONSIN ALUMNI RESEARCH FOUNDATION (United States of America) 2014-09-29
2173338 PHARMACEUTICAL COMPOSITIONS AND UTILIZATION THEREOF PARTICULARLY FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES AVENTIS PHARMA S.A. (France) 2014-09-29
2173945 PROCESS FOR MAKING HIGH PROTEIN AND/OR REDUCED FAT NUT SPREADS WHICH HAVE DESIRABLE FLUIDITY, TEXTURE AND FLAVOR THE PROCTER & GAMBLE COMPANY (United States of America) 2014-09-29
2178095 CUSHION STRAP ASSEMBLY AND METHOD OF MAKING SAME HBI BRANDED APPAREL ENTERPRISES, LLC (United States of America) 2014-09-29
1339479 WOUND DRESSING NDM ACQUISITION CORPORATION (United States of America) 2014-09-30
1339480 ANTIPARASITIC AGENTS AND PROCESS FOR THEIR PREPARATION ZOETIS LLC (United States of America) 2014-09-30
1339484 MODULAR ELECTRICAL ASSEMBLIES WITH PRESSURE RELIEF HUBBELL INCORPORATED (United States of America) 2014-09-30
2133364 PEDESTAL ARRANGEMENT FOR MOTOR GRADERS VOLVO MOTOR GRADERS LIMITED (Canada) 2014-09-30
2133370 STACKABLE CONSTRUCTION BLOCKS MCCOY, JOHN ROBERT (Canada) 2014-09-30
2133372 DE-ICING COMPOSITION AND ANTI-ICING COMPOSITION FOR AIRCRAFT CLARIANT PRODUKTE (DEUTSCHLAND) GMBH (Germany) 2014-09-30
2133377 SURGICAL SUTURING APPARATUS WITH LOADING MECHANISM RICHARDSON, MARGARET PAMELA (United Kingdom) RICHARDSON, PHILIP (United Kingdom) UNITED STATES SURGICAL CORPORATION (United States of America) 2014-09-30
2133381 PARTITION FOR DIVIDING A DEVICE BOX HUBBELL INCORPORATED (United States of America) 2014-09-30
2133390 SOFT STRONG TOWEL AND TISSUE PAPER GEORGIA-PACIFIC CONSUMER PRODUCTS LP (United States of America) 2014-09-30
2133392 AUTO-VENTING FOR POLYURETHANE FOAM ATOMA INTERNATIONAL INC. (Canada) 2014-09-30
2133395 SECURITY SEAL FOR SEALING THE END OF A TUBULAR MEMBER DE LIMA CASTRO NETTO, EDUARDO (Brazil) 2014-09-30
2133399 GAS BARRIER LAMINATED MATERIAL TOPPAN PRINTING CO., LTD. (Japan) 2014-09-30
2150552 ANTITHROMBOTIC SEIKAGAKU KOGYO KABUSHIKI KAISHA (SEIKAGAKU CORPORATION) (Japan) 2014-09-30
2150667 A GENE WHICH DETERMINES CYTOPLASMIC STERILITY AND A METHOD OF PRODUCING HYBRID PLANTS USING SAID GENE INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE (France) 2014-09-30
2169297 PROTEIN- OR PEPTIDE-COCHLEATE VACCINES AND METHODS OF IMMUNIZING USING THE SAME ALBANY MEDICAL COLLEGE (United States of America) RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY (United States of America) 2014-09-30
2170500 CHEWING GUM COMPOSITIONS CONTAINING ERYTHRITOL AND A MOISTURE BINDING AGENT WM. WRIGLEY JR. COMPANY (United States of America) 2014-09-30
2171090 RIBBON SENSING DEVICE FOR BAG TYER BURFORD CORPORATION (United States of America) 2014-09-30
2171194 A DEVICE FOR CLAMPING AND CUTTING PRICE INVENA APS (Denmark) 2014-09-30
2171617 CHEWING GUM WITH A ROLLING COMPOUND CONTAINING ERYTHRITOL WM. WRIGLEY JR. COMPANY (United States of America) 2014-09-30
2172968 DIFFUSER CONDUIT JOINT ITT MANUFACTURING ENTERPRISES, INC. (United States of America) 2014-09-30
2173112 COSMETIC MAKE-UP COMPOSITIONS THE PROCTER & GAMBLE COMPANY (United States of America) 2014-09-30
2173201 MEHTOD OF PRODUCING LENS, METHOD OF FABRICATING ARTICLE WITH LENS, ARTICLES WITH LENS, RESIN COMPOSITION FOR FORMING DEFINING LINES AND LENS-FORMING RESIN COMPOSITION GRAPAC JAPAN CO., INC. (Japan) 2014-09-30
2175670 PROCESS FOR PRODUCING A VIRUS-INACTIVATED FACTOR VIII-CONTAINING FRACTION BY CHROMATOGRAPHIC METHODS OCTAPHARMA AG. (Switzerland) 2014-09-30
2179042 METHOD AND APPARATUS FOR FORMING APERIODIC GRATINGS IN OPTICAL FIBERS UNITED TECHNOLOGIES CORPORATION (United States of America) 2014-09-30
2468821 SURGICAL SUTURING APPARATUS WITH LOADING MECHANISM UNITED STATES SURGICAL CORPORATION (United States of America) 2014-09-30
2172613 PROCESS FOR THE GALVANIC APPLICATION OF A SURFACE COATING HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT (Germany) WINTERTHURER METALLVEREDELUNG AKTIENGESELLSCHAFT (Switzerland) 2014-10-01
2133493 SLIDE SWITCH KABUSHIKI KAISHA T AN T (Japan) 2014-10-03
2133496 METHOD AND APPARATUS FOR BACK FACET MONITORING OF MULTIPLE SEMICONDUCTOR LASER DIODES XEROX CORPORATION (United States of America) 2014-10-03
2133503 ORALLY ADMINISTRABLE OPIOID FORMULATIONS HAVING EXTENDED DURATION OF EFFECT EURO-CELTIQUE, S.A. (Luxembourg) 2014-10-03
2133511 CHLORINE-FREE LUBRICATING OILS HAVING MODIFIED HIGH MOLECULAR WEIGHT SUCCINIMIDES CHEVRON RESEARCH AND TECHNOLOGY COMPANY (United States of America) 2014-10-03
2167813 STRENGTH DETERMINATION OF SHEET MATERIALS BY ULTRASONIC TESTING PAPER AUSTRALIA PTY LTD (Australia) 2014-10-03
2173469 COMPOSITION SUITABLE FOR INHIBITING POTATO SPROUTING AND/OR FUNGOID GROWTH MAKHTESHIM AGAN HOLDING B.V. SCHAFFHAUSEN BRANCH (Switzerland) 2014-10-03
2173496 DEVICE FOR PREVENTING THE RISK OF FIRE DUE TO BURNING OR GLOWING PARTICLES IN A PIPELINE FIREFLY AB (Sweden) 2014-10-03
2173498 DEVICE FOR PARTICLES DETECTION IN A PIPELINE FIREFLY AB (Sweden) 2014-10-03
2173504 COMPOSITION FOR DRUG DELIVERY COMPRISING NICOTINE OR A DERIVATIVE THEREOF AND STARCH MICROSPHERES AND METHOD FOR THE MANUFACTURING THEREOF MCNEIL AB (Sweden) 2014-10-03
2173595 DNA ENCODING PROSTAGLANDIN RECEPTOR IP MERCK CANADA INC. (Canada) 2014-10-03
2173947 MULTIPLEXING/DEMULTIPLEXING UNIT ARRANGED ON A MULTI-SURFACE INTEGRATED CIRCUIT TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2014-10-03
2173948 SYNCHRONIZING CIRCUIT ARRANGEMENT TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2014-10-03
2173950 SIGNAL PROCESSING UNIT TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2014-10-03
2174637 A SURFACE TREATED STEEL SHEET FOR BATTERY CONTAINERS, A BATTERY CONTAINER, AND A BATTERY PRODUCED THEREOF TOYO KOHAN CO., LTD. (Japan) 2014-10-03
2175909 AMMONIA-FREE DEPOSITION OF COPPER BY DISPROPORTIONATION LILLY TECHNOLOGIES, INC. (United States of America) 2014-10-03
2133598 NON-OCCLUSIVE ADHESIVE PATCH FOR APPLYING MEDICATION TO THE SKIN LECTEC CORPORATION (United States of America) 2014-10-04
2133607 CORTICOID -17,21-DICARBOXYLIC ESTERS AND CORTICOSTEROID 17-CABOXYLIC ESTERS 21-CARBONIC ESTERS, PROCESSES FOR THEIR PREPARATION AND PHARMACEUTICALS CONTAINING THESE COMPOUNDS HOECHST AKTIENGESELLSCHAFT (Germany) 2014-10-04
2133609 HIGH MODULUS MATERIALS FOR SURGICAL NEEDLES ETHICON, INC. (United States of America) 2014-10-04
2133617 TIME MULTIPLEXING ADDRESS AND DATA ON AN EXISTING PC PARALLEL PORT ATI TECHNOLOGIES INC. (Canada) 2014-10-04
2133627 ENDOSCOPIC SURGICAL INSTRUMENT WITH ROTATABLE INNER SHAFT SHERWOOD SERVICES AG (Switzerland) 2014-10-04
2133630 METHOD AND APPARATUS FOR SCREENING WASTE PAPER PULP ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA (Japan) ISHIKAWAJIMA SANGYO KIKAI KABUSHIKI KAISHA (Japan) 2014-10-04
2133677 COUPLING FOR ROTARY-VIBRATORY DRILLS ROUSSY, RAYMOND JOSEPH (Canada) 2014-10-04
2168351 METHOD AND APPARATUS FOR CONNECTING A NODE TO A WIRELESS NETWORK USING A STANDARD PROTOCOL SAMSUNG ELECTRONICS CO., LTD. (Republic of Korea) 2014-10-04
2171871 STABLE SOLVATES OF AVERMECTIN COMPOUNDS MERCK SHARP & DOHME CORP. (United States of America) 2014-10-04
2173505 USE OF PENCICLOVIR FOR THE TREATMENT OF POST-HERPETIC NEURALGIA SMITHKLINE BEECHAM P.L.C. (United Kingdom) 2014-10-04
2173593 TITANIUM ALLOY PRODUCTS AND METHODS FOR THEIR PRODUCTION UNIVERSITY OF BIRMINGHAM (THE) (United Kingdom) 2014-10-04
2173616 CONTINUOUS PROCESS FOR THE MANUFACTURE OF LACTIDE AND LACTIDE POLYMERS CARGILL, INCORPORATED (United States of America) 2014-10-04
2133675 METHOD OF FORMING CONCRETE RETAINING WALL BLOCK ALLAN BLOCK CORPORATION (United States of America) 2014-10-05
2133686 INFECTION-RESISTANT SURGICAL DEVICES AND METHODS OF MAKING THEM UNITED STATES SURGICAL CORPORATION (United States of America) 2014-10-05
2133699 METHOD OF AUTOMATED PROVING FOR UNRESTRICTED FIRST-ORDER LOGIC BULL S.A. (France) 2014-10-05
2133714 DISPENSER FOR GRANULAR MATERIAL DART INDUSTRIES INC. (United States of America) 2014-10-05
2133716 ELECTROMAGNETIC FLOWMETER KABUSHIKI KAISHA TOSHIBA (Japan) 2014-10-05
2133848 METHOD OF LEAK TESTING LEHMANN, MARTIN (Switzerland) 2014-10-05
2149522 CONTINUOUSLY ANNEALED COLD-ROLLED STEEL SHEET EXCELLENT IN BALANCE BETWEEN DEEP DRAWABILITY AND RESISTANCE TO SECONDARY-WORK EMBRITTLEMENT AND METHOD FOR MANUFACTURING SAME JFE STEEL CORPORATION (Japan) 2014-10-05
2150924 ONE-OR TWO-LEAF SLIDING DOOR, SWINGING DOOR OR POCKET DOOR KNORR-BREMSE GESELLSCHAFT MIT BESCHRANKTER HAFTUNG (Austria) 2014-10-05
2163894 STEEL WIRE ROD OF HIGH STRENGTH AND STEEL WIRE OF HIGH STRENGTH EXCELLENT IN FATIGUE CHARACTERISTICS NIPPON STEEL CORPORATION (Japan) 2014-10-05
2170516 GLASS SHEET BENDING APPARATUS AND METHOD GLASSTECH, INC. (United States of America) 2014-10-05
2172143 NEW EMULSION FORMULATION ASTRA AKTIEBOLAG (Sweden) 2014-10-05
2172412 METHODS FOR REPROCESSING DIALYZERS LEVIN, NATHAN (United States of America) POLASCHEGG, HANS-DIETRICH (Germany) 2014-10-05
2173317 PHARMACEUTICALLY ACCEPTABLE POLYMERIC TISSUE COATING BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (United States of America) 2014-10-05
2173329 AMYLASE VARIANTS NOVOZYMES A/S (Denmark) 2014-10-05
2173507 PRECIPITATION HARDENED FERROUS ALLOY WITH QUASICRYSTALLINE PRECIPITATES SANDVIK INTELLECTUAL PROPERTY AB (Sweden) 2014-10-05
2176349 CONTACT LUBRICATOR WITH METERED SUPPLY POSITECH INCORPORATED (United States of America) 2014-10-05
2494499 METHOD OF LEAK TESTING LEHMANN, MARTIN (Switzerland) 2014-10-05

List auto-generated on September 28, 2014