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
2179948 METHOD FOR EXTRACTING BITUMEN FROM TAR SANDS MOBIL OIL CORPORATION (United States of America) 2016-06-26
2179951 FRACTURING AND PROPPING A FORMATION USING A DOWNHOLE SLURRY SPLITTER EXXONMOBIL OIL CORPORATION (United States of America) 2016-06-26
2179952 ADAPTER FOR OIL WELL TUBINGS PETROLEO BRASILEIRO S.A. – PETROBRAS (Brazil) 2016-06-26
2179963 WELDED CARRIER IMPROVEMENTS ILLINOIS TOOL WORKS INC. (United States of America) 2016-06-26
2179965 ANTENNA FOR PROGRAMMING A TRANSPONDER BIO MEDIC DATA SYSTEMS, INC. (United States of America) 2016-06-26
2179966 IMPLANTABLE TRANSPONDER AND IMPROVED METHOD OF ASSEMBLY BIO MEDIC DATA SYSTEMS, INC. (United States of America) 2016-06-26
2179971 AN ADAPTABLE COMMUNICATION APPARATUS AND AN ADAPTABLE COMMUNICATION SYSTEM CANON KABUSHIKI KAISHA (Japan) 2016-06-26
2179973 IMAGE TRANSMISSION APPARATUS, IMAGE TRANSMISSION SYSTEM, AND COMMUNICATION APPARATUS CANON KABUSHIKI KAISHA (Japan) 2016-06-26
2179974 INK-JET RECORDING HEAD AND INK-JET RECORDING APPARATUS CANON KABUSHIKI KAISHA (Japan) 2016-06-26
2179977 CODE-DIVISION MULTIPLE-ACCESS BASE STATION TRANSMITTER NEC CORPORATION (Japan) 2016-06-26
2222501 A METHOD TO EVALUATE THE HANGOVER PERIOD IN A SPEECH DECODER IN DISCONTINUOUS TRANSMISSION, AND A SPEECH ENCODER AND A TRANSCEIVER NOKIA TECHNOLOGIES OY (Finland) 2016-06-26
2223822 METHOD FOR CONTROLLING A POPULATION OF SOCIAL INSECTS USING 1-ARYLPYRAZOLES OR 1-HETEROARYLPYRAZOLES BAYER SAS (France) 2016-06-26
2225813 ANTIPARASITIC MARCFORTINES AND PARAHERQUAMIDES ZOETIS SERVICES LLC (United States of America) 2016-06-26
2225856 SPRING-EFFECT HINGE ARRANGEMENT, FOR EXAMPLE FOR ONE-PIECE INJECTED PLASTIC CLOSURES CREANOVA AG (Switzerland) 2016-06-26
2226184 A PROCESS FOR THE OPTICAL PURIFICATION OF ENANTIOMERICALLY ENRICHED BENZIMIDAZOLE DERIVATIVES ASTRAZENECA AB (Sweden) 2016-06-26
2226635 INTERIOR LINER FOR TUBES, PIPES AND BLOOD CONDUITS W.L. GORE & ASSOCIATES, INC. (United States of America) 2016-06-26
2231593 DEVICE AND METHOD FOR REINFORCING SURGICAL STAPLES W.L. GORE & ASSOCIATES, INC. (United States of America) 2016-06-26
2354099 AN ADAPTABLE COMMUNICATION APPARATUS AND AN ADAPTABLE COMMUNICATION SYSTEM CANON KABUSHIKI KAISHA (Japan) 2016-06-26
2365268 IMAGE TRANSMISSION APPARATUS, IMAGE TRANSMISSION SYSTEM, AND COMMUNICATION APPARATUS CANON KABUSHIKI KAISHA (Japan) 2016-06-26
2180045 SYSTEM FOR INTEGRATING DIGITAL AUDIO AND ANALOG VIDEO TO PROVIDE SEAMLESS USER TRANSPARENT FEATURES GOOGLE TECHNOLOGY HOLDINGS LLC (United States of America) 2016-06-27
2180046 METHOD AND SYSTEM FOR SKIN EFFECT CORRECTION IN A MULTIPLE TRANSMIT FREQUENCY INDUCTION LOGGING SYSTEM PRECISION ENERGY SERVICES, INC. (United States of America) 2016-06-27
2180047 INTERNAL PRESSURE SLEEVE FOR USE WITH EASILY DRILLABLE EXIT PORTS HALLIBURTON ENERGY SERVICES, INC. (United States of America) 2016-06-27
2180048 KEYLESS LATCH FOR ORIENTING AND ANCHORING DOWNHOLE TOOLS HALLIBURTON ENERGY SERVICES, INC. (United States of America) 2016-06-27
2180094 DEBARKING TOOTH OF A DEBARKING MACHINE FUJI KOGYO CO., LTD. (Japan) 2016-06-27
2180172 ARRANGEMENT FOR MATCHING AND TUNING A SURFACE ACOUSTIC WAVE FILTER NORSPACE AS (Norway) 2016-06-27
2223955 FILLER FOR USE IN PAPER MANUFACTURE AND PROCEDURE FOR PRODUCING A FILLER MINTEQ UK LIMITED (United Kingdom) 2016-06-27
2224605 SYNCHRONISATION IN DIGITAL COMMUNICATIONS NETWORKS BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (United Kingdom) 2016-06-27
2224706 AUTOMATIC POWER CONTROL SYSTEM FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) COMMUNICATIONS SYSTEM INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2224728 PATCH CORD ASSEMBLY THE WHITAKER CORPORATION (United States of America) 2016-06-27
2225713 PHARMACEUTICAL COMPOSITIONS CONTAINING HERBAL-BASED ACTIVE INGREDIENTS ECOPHARM USA LLC (United States of America) 2016-06-27
2365087 AUTOMATIC POWER CONTROL SYSTEM FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) COMMUNICATIONS SYSTEM INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2376313 SYSTEM CAPACITY CONTROL INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2376319 NOISE LEVEL ESTIMATION INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2376321 MAINTENANCE POWER CONTROL FOR A SUBSCRIBER UNIT INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2378873 SELF BLOCKING FOR A SUBSCRIBER UNIT INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2378885 SIGNAL BLOCKING FOR A BASE RADIO CONTROL STATION INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2645140 NOISE LEVEL ESTIMATION INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2848679 NOISE LEVEL ESTIMATION INTERDIGITAL TECHNOLOGY CORPORATION (United States of America) 2016-06-27
2180198 AXIAL VANE ROTARY ENGINE WITH CONTINUOUS FUEL INJECTION REG TECHNOLOGIES INC. (Canada) 2016-06-28
2180199 USE OF A PREPARATION FOR INSULATION/SEALING AND COATING PURPOSES AND METHOD FOR SEALING MANHOLE COVERS FRANS NOOREN AFDICHTINGSSYSTEMEN B.V. (Netherlands) 2016-06-28
2180222 POLYSULFONE HOLLOW FIBER SEMIPERMEABLE MEMBRANE TORAY INDUSTRIES, INC. (Japan) 2016-06-28
2180223 OLEFIN THERMOPLASTIC ELASTOMER COMPOSITIONS MITSUI CHEMICALS, INC. (Japan) 2016-06-28
2180224 PERMSELECTIVE MEMBRANES AND METHODS FOR THEIR PRODUCTION TORAY INDUSTRIES, INC. (Japan) 2016-06-28
2180225 METHOD FOR CONTROLLING PHYTOPATHOGENIC FUNGI GOWAN COMERCIO INTERNACIONAL E SERVICOS LIMITADA (Portugal) 2016-06-28
2180232 HOLLOW FIBER VAPOR PERMEATION MEMBRANES AND MODULES BEND RESEARCH, INC. (United States of America) 2016-06-28
2180233 METHOD AND APPARATUS FOR THERMALLY INDUCING CIRCULATION OF FLUID BETWEEN THE INTERIOR OF A SYSTEM AND A FLUID POCKET ATTACHED THERETO GE SYPROTEC INC. (Canada) 2016-06-28
2180278 LOW FAT PEANUT BUTTER-LIKE PRODUCT BEING SHELF STABLE AT ROOM TEMPERATURES AND METHOD FOR MAKING THE SAME PEANUT WONDER CORP. (United States of America) 2016-06-28
2198918 METHOD, ASSEMBLY AND COMPLEMENTARY PLASTER FOR NON-STRUCTURAL WORK CONTINENTAL BUILDING PRODUCTS CANADA INC. (Canada) 2016-06-28
2199625 IMPACT PRINTER WITH YIELDING PLATEN ING. C. OLIVETTI & C., S.P.A. (Italy) 2016-06-28
2199626 DOCUMENT ALIGNING AND FEEDING DEVICE ING. C. OLIVETTI & C., S.P.A. (Italy) 2016-06-28
2222524 SOMATOSTATIN PEPTIDES NOVARTIS AG (Switzerland) 2016-06-28
2222723 LOW TEMPERATURE RENDERING PROCESS, AND MEAT PRODUCT CARGILL INCORPORATED (United States of America) 2016-06-28
2224263 SHAVING AID COMPOSITE WITH A NON-VOLATILE COOLING AGENT THE GILLETTE COMPANY (United States of America) 2016-06-28
2224409 COMPOSITION BASED ON ZIRCONIUM OXIDE AND CERIUM OXIDE, PREPARATION METHOD THEREFOR AND USE THEREOF RHODIA CHIMIE (France) 2016-06-28
2224738 USE OF RITONAVIR (ABT-538) FOR IMPROVING THE PHARMACOKINETICS OF DRUGS METABOLIZED BY CYTOCHROME P450 IN A METHOD OF TREATING AIDS ABBVIE INC. (United States of America) 2016-06-28
2225283 SOLID ORAL DIAGNOSTIC TEST MEAL AND METHODS OF USE THEREOF CEAPRO INC. (Canada) 2016-06-28
2225455 IMPROVEMENTS IN OR RELATING TO MOTION DETECTION UNITS PYRONIX LIMITED (United Kingdom) 2016-06-28
2225915 PROCESS AND DEVICE FOR DOSING THE THERMAL OUTPUT OF COMBINED HEAT AND POWER GENERATION SYSTEMS MARATHON ENGINE SYSTEMS, INC. (United States of America) 2016-06-28
2225936 VALUE TRANSFER SYSTEM MONDEX INTERNATIONAL LIMITED (United Kingdom) 2016-06-28
2226070 DRILLING COMPOSITIONS AND METHODS HALLIBURTON ENERGY SERVICES, INC. (United States of America) 2016-06-28
2226087 NUCLEOTIDE AND PROTEIN SEQUENCES OF VERTEBRATE DELTA GENES AND METHODS BASED THEREON IMPERIAL CANCER RESEARCH TECHNOLOGY, LTD. (United Kingdom) YALE UNIVERSITY (United States of America) 2016-06-28
2226503 APPARATUS FOR DEMODULATING AND DECODING VIDEO SIGNALS THOMSON CONSUMER ELECTRONICS, INC. (United States of America) 2016-06-28
2226505 APPARATUS FOR DECODING VIDEO SIGNALS ENCODED IN DIFFERENT FORMATS THOMSON CONSUMER ELECTRONICS, INC. (United States of America) 2016-06-28
2227236 COATED ELECTROSURGICAL ELECTRODE AND METHOD OF MANUFACTURE SHERWOOD SERVICES AG (United States of America) 2016-06-28
2245653 CLOSURE WITH FLOWABLE MATERIAL AND REINFORCING CORE MINNESOTA MINING AND MANUFACTURING COMPANY (United States of America) 2016-06-28
2618949 OLEFIN THERMOPLASTIC ELASTOMER COMPOSITIONS MITSUI CHEMICALS, INC. (Japan) 2016-06-28
1340611 RECOMBINANT ALVEOLAR SURFACTANT PROTEIN NYCOMED GMBH (Germany) 2016-06-29
1340616 PROCESS FOR THE BIOCHEMICAL OXIDATION OF STEROIDS AND GENETICALLY ENGINEERED CELLS TO BE USED THEREFOR AVENTIS PHARMA S.A. (France) 2016-06-29
1340617 EXPRESSION OF HEPATITIS B S AND PRES2 PROTIENS IN METHYLOTROPHIC YEASTS RESEARCH CORPORATION TECHNOLOGIES, INC. (United States of America) 2016-06-29
1340618 ALUMINUM ALLOY PRODUCT HAVING IMPROVED COMBINATIONS OF STRENGTH, TOUGHNESS AND CORROSION RESISTANCE ALUMINUM COMPANY OF AMERICA (United States of America) 2016-06-29
1340622 ATRIAL NATRIURETIC FACTOR QUEEN’S UNIVERSITY AT KINGSTON (Canada) 2016-06-29
2198088 MICROWAVE/MILLIMETER WAVE CIRCUIT STRUCTURE WITH DISCRETE FLIP-CHIP MOUNTED ELEMENTS, AND METHOD OF FABRICATING THE SAME HUGHES ELECTRONICS CORPORATION (United States of America) 2016-07-01
2198893 TRANSMISSION OF GRAPHIC IMAGES KONINKLIJKE PHILIPS ELECTRONICS N.V. (Netherlands) 2016-07-01
2202748 RF POWER AMPLIFIER SYSTEM HAVING AN IMPROVED DRIVE SYSTEM HARRIS CORPORATION (United States of America) 2016-07-01
2222841 FISH HARVESTER NORDISCHER MASCHINENBAU RUD. BAADER GMBH + CO. KG (Germany) 2016-07-01
2225675 NOVEL PEPTIDES DERIVED FROM HUMAN HEAT SHOCK PROTEIN 60 FOR TREATMENT OF DIABETES, COMPOSITIONS, METHODS AND KITS YEDA RESEARCH AND DEVELOPMENT CO. LTD. (Israel) 2016-07-01
2226120 IMPROVEMENTS IN DEEP WELL PUMPING APPARATUS HARRIER TECHNOLOGIES, INC. (United States of America) 2016-07-01
2226445 METHOD AND ASSEMBLY OF MEMBER AND TERMINAL SHERWOOD SERVICES AG (Switzerland) 2016-07-01
2227565 SHIFTER FOR CHILDREN’S RIDE-ON VEHICLES INCLUDING CAM OPERATED SPEED AND DIRECTION ROCKER SWITCHES MATTEL, INC. (United States of America) 2016-07-01
2180301 SUBSTITUTED DIHYDRODIBENZO/B,F/AZEPINES, METHOD OF THEIR PREPARATION, THEIR USE IN THE TREATMENT OF SOME CENTRAL NERVOUS SYSTEM DISORDERS, AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM PORTELA & C.A., S.A. (Portugal) 2016-07-02
2180305 SUBMERGED PIPE SEPARATOR TANK IMBRIUM SYSTEMS INC. (Canada) 2016-07-02
2180306 COMBINATION COMPRESSOR UNLOADER GE OIL & GAS COMPRESSION SYSTEMS, LLC (United States of America) 2016-07-02
2180315 METHOD FOR FORMING AN EFFECTIVE SEAL FOR A CARTON GRAPHIC PACKAGING CORPORATION (United States of America) 2016-07-02
2180316 STANDBY HIGH VOLTAGE ANALOG LINE FEED MITEL NETWORKS CORPORATION (United States of America) 2016-07-02
2199289 NOVEL COMPOSITIONS CONTAINING PHOSPHOGLYCERO ETHERS, AND USE THEREOF FOR TREATING NEURODEGENERATIVE DISEASES L’INSTITUT DE RECHERCHE BIOLOGIQUE (France) 2016-07-02
2223634 PREPARATION OF N-SUBSTITUTED 3-HYDROXYPYRAZOLES BASF AKTIENGESELLSCHAFT (Germany) 2016-07-02
2226013 PREPARATIONS AND METHODS FOR THE TREATMENT OF T CELL MEDIATED DISEASES YEDA RESEARCH AND DEVELOPMENT CO., LTD. (Israel) 2016-07-02
2226189 METHOD AND APPARATUS FOR SYNCHRONIZING DATA TRANSMISSION WITH ON-DEMAND LINKS OF A NETWORK NOVELL, INC. (United States of America) 2016-07-02
2226204 NETWORK ADDRESSING ARRANGEMENT FOR BACKWARD COMPATIBLE ROUTING OF AN EXPANDED ADDRESS SPACE NOVELL, INC. (United States of America) 2016-07-02
2226331 ANTITUMOR 2-AMINOCARBONYL-1,2-BIS(METHYLSULFONYL)-1-(SUBSTITUTED)HYDRAZINES YALE UNIVERSITY (United States of America) 2016-07-02
2226727 PREDICTION OF THE PROPERTIES OF BOARD BY USING A SPECTROSCOPIC METHOD COMBINED WITH MULTIVARIATE CALIBRATION CASCO PRODUCTS AB (Sweden) 2016-07-02
2227519 COMPACT DISC CHANGER UTILIZING DISC DATABASE SONY ELECTRONICS INC. (United States of America) SONY CORPORATION (Japan) 2016-07-02
2231813 DISPOSABLE OXYGENATING DEVICE TELEFLEX LIFE SCIENCES (United States of America) 2016-07-02
2259471 SKIN LIGHTENING COMPOSITIONS CHILDREN’S HOSPITAL MEDICAL CENTER (United States of America) 2016-07-02

List auto-generated on June 25, 2016

Canadian Intellectual Property