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
2203454 FAULT CURRENT LIMITING CIRCUIT I-GARD CORPORATION (Canada) 2017-04-23
2203456 TOPICAL ANALGESIC COMPOSITION D.T.R. DERMAL THERAPY RESEARCH INC. (Canada) 2017-04-23
2203459 FIFTH WHEEL BRACKET FONTAINE FIFTH WHEEL CO. (United States of America) 2017-04-23
2203461 FULLY AUTOMATIC, MULTIPLE OPERATION RAIL MAINTENANCE APPARATUS NORDCO INC. (United States of America) 2017-04-23
2203467 PARTIALLY CRYSTALLIZING ENAMEL CONTAINING CRYSTALLINE ZINC BORATE SEED MATERIAL FERRO GMBH (Germany) 2017-04-23
2203476 ROOM TEMPERATURE SENSOR AND THERMOSTAT CONTROL DEVICE SIEMENS INDUSTRY, INC. (United States of America) 2017-04-23
2203480 INTERFERON CONJUGATES F. HOFFMANN-LA ROCHE AG (Switzerland) 2017-04-23
2203486 CLEAR AQUEOUS SOLUTIONS OF SODIUM SILICATE OCCIDENTAL CHEMICAL CORPORATION (United States of America) 2017-04-23
2203487 WELD REPAIRABLE STEEL FOR THE MANUFACTURE OF MOULDS FOR PLASTICS CREUSOT LOIRE INDUSTRIE (France) 2017-04-23
2203488 LOW ALLOY STEEL FOR THE MANUFACTURE OF MOULDS FOR PLASTICS CREUSOT LOIRE INDUSTRIE (France) 2017-04-23
2203491 AERATED STORAGE BIN FOR CROP MATERIALS WESTEEL CANADA INC. (Canada) 2017-04-23
2203497 A SAFETY DEVICE FOR AN ARCHITECTURAL OPENING COVERING HUNTER DOUGLAS INC. (United States of America) 2017-04-23
2222812 MOLTEN METAL IMPELLER PYROTEK, INC. (United States of America) 2017-04-23
2225001 SYSTEM FOR IDENTIFYING THE USER OF POSTAL EQUIPMENT ASCOM HASLER MAILING SYSTEMS, INC. (United States of America) 2017-04-23
2226716 DECRYPTION OF RETRANSMITTED DATA IN AN ENCRYPTED COMMUNICATION SYSTEM MOTOROLA SOLUTIONS, INC. (United States of America) 2017-04-23
2233637 COMPOSITE ANTENNA KYOCERA CORPORATION (Japan) 2017-04-23
2238962 IMPROVED DIFFRACTIVE MULTIFOCAL OPHTHALMIC LENS ALCON LABORATORIES, INC. (United States of America) 2017-04-23
2242535 ASPHALT MATERIAL RECYCLING SYSTEM AND METHOD TBM TECH, LLC (United States of America) 2017-04-23
2248577 INTERNET PROTOCOL FILTER ROCKSTAR CONSORTIUM US LP (United States of America) 2017-04-23
2250433 HUMAN DNASE II GENENTECH, INC. (United States of America) 2017-04-23
2251709 CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES HYDRO-QUEBEC (Canada) 2017-04-23
2251732 FLEXIBLE CABLE MANAGEMENT SYSTEM JETTE, ROGER (United States of America) 2017-04-23
2251790 METHODS OF REGULATING SKIN APPEARANCE WITH VITAMIN B3 COMPOUND THE PROCTER & GAMBLE COMPANY (United States of America) 2017-04-23
2252677 FUNGICIDE MIXTURE BASF SE (Germany) 2017-04-23
2252973 DIGITAL INFORMATION SYSTEM T-REX PROPERTY AB (Sweden) 2017-04-23
2253635 USE OF ASPIROCHLORINE OR DERIVATIVES THEREOF AS IMMUNOSUPPRESSIVE AGENTS GRUPPO LEPETIT S.P.A. (Italy) 2017-04-23
2255693 INTERPROXIMAL FLOSS BRUSH THE MEGAN SUMI CORPORATION (United States of America) 2017-04-23
2273498 CROSS-LINKED PROTEIN GELS AND METHODS OF MAKING THEM ZYMOGENETICS, INC. (United States of America) 2017-04-23
2543784 CATHODE MATERIALS COMPRISING RHOMBOHEDRAL NASICON FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES HYDRO-QUEBEC (Canada) 2017-04-23
2755356 CATHODE MATERIALS COMPRISING RHOMBOHEDRAL NASICON FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES HYDRO-QUEBEC (Canada) 2017-04-23
2803760 CATHODE MATERIALS COMPRISING RHOMBOHEDRAL NASICON FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES HYDRO-QUEBEC (Canada) 2017-04-23
2203577 METHOD FOR DYNAMIC ALLOCATION OF VOICE AND IMAGE COMPRESSION CHANYU HOLDINGS, LLC (United States of America) 2017-04-24
2203586 FIBER-OPTIC TRANSCEIVER FOR COMBINED SERIAL DATA AND TIME CODE COMMUNICATION SCHWEITZER ENGINEERING LABORATORIES, INC. (United States of America) 2017-04-24
2203587 A HEAT EXCHANGER TUBE SUPPORTING PLATE AND A PROCESS FOR MANUFACTURING IT MITSUBISHI JUKOGYO KABUSHIKI KAISHA (Japan) 2017-04-24
2203599 TWO-STAGE DRYING SPRAY DRYER POWDERING JAPAN K.K. (Japan) MORINAGA MILK INDUSTRY CO. LTD. (Japan) 2017-04-24
2203610 PROCESS FOR PREPARING PIGMENT COMPOSITION, PIGMENT COMPOSITION AND ITS USE TOYO INK MANUFACTURING CO. LTD. (Japan) 2017-04-24
2203617 POWER TRANSMISSION BELT MITSUBOSHI BELTING LTD. (Japan) 2017-04-24
2203634 IMPROVEMENTS IN AND RELATING TO PIPE CONNECTORS OIL STATES INDUSTRIES (UK) LTD. (United Kingdom) 2017-04-24
2251112 PROGRESSIVE CAVITY PUMPS USING COMPOSITE MATERIALS EXOKO COMPOSITES COMPANY LLC (United States of America) 2017-04-24
2252535 A PHARMACEUTICAL FORMULATION CONTAINING GROWTH HORMONE, AN AMINO ACID AND A NON-IONIC DETERGENT NOVO NORDISK HEALTH CARE AG (Switzerland) 2017-04-24
2252536 ETHYLENE DERIVATIVES AND PESTICIDES CONTAINING SAID DERIVATIVES NISSAN CHEMICAL INDUSTRIES, LTD. (Japan) 2017-04-24
2252576 USE OF DIPEPTIDYL PEPTIDASE IV INHIBITORS FOR LOWERING THE BLOOD GLUCOSE LEVEL IN MAMMALS PROSIDION LIMITED (United Kingdom) 2017-04-24
2252590 PULSED OPERATION CONTROL VALVE ROCKY RESEARCH (United States of America) 2017-04-24
2252591 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-24
2252593 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-24
2252649 A SYSTEM AND METHOD FOR SECURE NETWORK ELECTRONIC PAYMENT AND CREDIT COLLECTION HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (United States of America) 2017-04-24
2252763 FLOW REGULATED PRESSURE SWING ADSORPTION SYSTEM AIR PRODUCTS AND CHEMICALS, INC. (United States of America) 2017-04-24
2252785 PIPELINE STORAGE COFLEXIP STENA OFFSHORE LIMITED (United Kingdom) 2017-04-24
2252882 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-24
2253196 FIRING MIXTURES DYNAMIT NOBEL GMBH EXPLOSIVSTOFF-UND SYSTEMTECHNIK (Germany) 2017-04-24
2253375 EXPANSION PROJECTILE WINTER, UDO (Austria) 2017-04-24
2253378 ELECTRONICALLY CONTROLLED WEAPONS RANGE WITH RETURN FIRE CUBIC CORPORATION (United States of America) 2017-04-24
2253544 TELEVISION RECEIVER USE METERING WITH SEPARATE PROGRAM AND SYNC DETECTORS THE NIELSEN COMPANY (US), LLC (United States of America) 2017-04-24
2253854 WATER-IN-OIL EMULSION SPREAD UNILEVER BCS LIMITED (United Kingdom) 2017-04-24
2255599 LIGHT-CONTROLLED ELECTROKINETIC ASSEMBLY OF PARTICLES NEAR SURFACES BIOARRAY SOLUTIONS, LLC (United States of America) 2017-04-24
2287342 MONOFILAMENTS WITH SPLIT ENDS E.I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2017-04-24
2518306 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-24
2548805 LIGHT-CONTROLLED ELECTROKINETIC ASSEMBLY OF PARTICLES NEAR SURFACES BIOARRAY SOLUTIONS LTD. (United States of America) 2017-04-24
2560512 MONOFILAMENTS WITH SPLIT ENDS E.I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2017-04-24
2635416 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-24
2661801 MONOFILAMENTS WITH SPLIT ENDS E.I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2017-04-24
1340974 PLANT UNIVERSAL STRESS-INDUCIBLE REGULATORY ELEMENT THE UNIVERSITY OF FLORIDA (United States of America) DOW AGROSCIENCES LLC (United States of America) 2017-04-25
1340976 FIBROBLAST GROWTH FACTOR ANTAGONISTS THE SALK INSTITUTE FOR BIOLOGICAL STUDIES (United States of America) 2017-04-25
2203724 RECYCLER TROLLEY RIGO, ALEX Z. (Canada) 2017-04-25
2203726 SILANIZED SILICA EVONIK DEGUSSA GMBH (Germany) 2017-04-25
2203747 METHOD FOR LONG TERM MONITORING OF MAGNETIC FIELDS PUBLIC SERVICE ELECTRIC AND GAS COMPANY (United States of America) 2017-04-25
2203748 DEVICE USED FOR LONG TERM MONITORING OF MAGNETIC FIELDS PUBLIC SERVICE ELECTRIC AND GAS COMPANY (United States of America) 2017-04-25
2203816 PROPELLERS GKN WESTLAND HELICOPTERS LIMITED (United Kingdom) 2017-04-25
2203818 SECURITY SYSTEM USING CALLER IDENTIFICATION DETECTION SYSTEMS, INC. (United States of America) 2017-04-25
2203819 BLOOD EXTRACTION DEVICE HAVING A HOLDER AND A SHARPENED-END CANNULA WALTER SARSTEDT GERATE UND VERBRAUCHSMATERIAL FUR MEDIZIN UND WISSENSCHAFT (Germany) 2017-04-25
2203821 DIVIDING WALL COLUMN FOR CONTINUOUS FRACTIONATION OF MULTICOMPONENT MIXTURES BY DISTILLATION BASF AKTIENGESELLSCHAFT (Germany) 2017-04-25
2204673 METHOD OF CONTROLLING SCALE FORMATION IN BRINE CONCENTRATION AND EVAPORATION SYSTEMS GE BETZ, INC. (United States of America) 2017-04-25
2224824 METHOD FOR PRODUCING POLYSULFIDES BY ELECTROLYTIC OXIDATION KAWASAKI KASEI CHEMICALS LTD. (Japan) 2017-04-25
2224928 BLEEDING INK FOR PRINTING SECURITY DOCUMENTS SICPA HOLDING SA (Switzerland) 2017-04-25
2225345 A RUTHENIUM-BASED CATALYST SYSTEM FOR OLEFIN METATHESIS AMOCO CORPORATION (United States of America) 2017-04-25
2243418 ROAD MAINTENANCE TRACKLAYING VEHICLE KASSBOHRER GELANDEFAHRZEUG AKTIENGESELLSCHAFT (Germany) 2017-04-25
2249568 SOYBEAN OIL HAVING HIGH OXIDATIVE STABILITY E.I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2017-04-25
2251135 MENU DISPLAY INTERFACE WITH MINIATURE WINDOWS CORRESPONDING TO EACH PAGE SONY ELECTRONICS INC. (United States of America) 2017-04-25
2251604 HUMAN HEMATOPOIETIC STEM AND PROGENITOR CELL ANTIGEN AND METHODS FOR ITS USE MILTENYI BIOTEC GMBH (Germany) 2017-04-25
2251746 OXA DIACIDS AND RELATED COMPOUNDS FOR TREATING SKIN CONDITIONS AVON PRODUCTS, INC. (United States of America) 2017-04-25
2252466 HEPATITIS B MONOCLONAL ANTIBODIES ABBOTT LABORATORIES (United States of America) 2017-04-25
2252513 METHOD FOR THE PREVENTION AND TREATMENT OF CACHEXIA AND ANOREXIA ABBOTT LABORATORIES (United States of America) 2017-04-25
2252522 FLUTED FILTER MEDIA DONALDSON COMPANY, INC. (United States of America) 2017-04-25
2252584 TREATMENT OF CARCINOMAS USING SQUALAMINE IN COMBINATION WITH OTHER ANTI-CANCER AGENTS GENAERA CORPORATION (United States of America) 2017-04-25
2252596 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-25
2252648 NON-INVASIVE ENZYME SCREEN FOR TISSUE REMODELLING-ASSOCIATED CONDITIONS CHILDREN’S MEDICAL CENTER CORPORATION (United States of America) 2017-04-25
2252664 METHOD AND APPARATUS FOR DATA TRANSMISSION USING MULTIPLE TRANSMIT ANTENNAS AT&T CORP. (United States of America) 2017-04-25
2252837 METHOD AND METER FOR MEASURING THE COMPOSITION OF A MULTIPHASE FLUID SHELL CANADA LIMITED (Canada) 2017-04-25
2252958 FUNGICIDE SALTS AGREVO UK LIMITED (United Kingdom) 2017-04-25
2253246 PURIFIED MULTIMERASE BAXALTA INCORPORATED (United States of America) BAXALTA GMBH (Switzerland) 2017-04-25
2253299 SELF-COINING FASTENER HAHN MANUFACTURING CORPORATION (United States of America) 2017-04-25
2253353 OPTO-MECHANICAL CONNECTOR TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2017-04-25
2253367 ANGLED OPTO-MECHANICAL CONNECTOR TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2017-04-25
2253603 DISPLACEMENT-CURRENT SENSOR AND METHOD FOR DETERMINING THREE-DIMENSIONAL POSITION, ORIENTATION AND MASS DISTRIBUTION MASSACHUSETTS INSTITUTE OF TECHNOLOGY (United States of America) 2017-04-25
2263397 INTRAVASCULAR STENT SCIMED LIFE SYSTEMS, INC. (United States of America) 2017-04-25
2269844 SELF-FILLING BLOOD COLLECTION DEVICE SMITHS MEDICAL ASD, INC. (United States of America) 2017-04-25
2284018 EXTRACTING DATA SECTIONS FROM A TRANSMITTED DATA STREAM THOMSON LICENSING S.A. (France) 2017-04-25
2284023 BROADCAST AND RECEPTION SYSTEM, AND CONDITIONAL ACCESS SYSTEM THEREFOR NAGRA FRANCE SAS (France) 2017-04-25
2284153 METHOD OF DOWNLOADING OF DATA TO AN MPEG RECEIVER/DECODER AND MPEG TRANSMISSION SYSTEM FOR IMPLEMENTING THE SAME THOMSON LICENSING S.A. (France) 2017-04-25
2284681 TRANSMISSION AND RECEPTION OF TELEVISION PROGRAMMES AND OTHER DATA THOMSON LICENSING S.A. (France) 2017-04-25
2288726 EYEDROPS CONTAINING A LORATADINE METABOLITE SCHERING-PLOUGH KABUSHIKI KAISHA (Japan) 2017-04-25
2355247 METHOD FOR THE PREVENTION AND TREATMENT OF CACHEXIA AND ANOREXIA ABBOTT LABORATORIES (United States of America) 2017-04-25
2388889 SOYBEAN OIL HAVING HIGH OXIDATIVE STABILITY E.I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2017-04-25
2203842 INSTANT-ON VENTED TANK VALVE WITH MANUAL OVERRIDE AND METHOD OF OPERATION THEREOF WESTPORT POWER INC. (Canada) 2017-04-28
2203843 LIPOSOME-ENCAPSULATED POLY ICLC HER MAJESTY THE QUEEN, IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF NATIONAL DEFENCE (Canada) 2017-04-28
2203857 MICROPARTICLES FOR DELIVERY OF NUCLEIC ACID EISAI INC. (United States of America) 2017-04-28
2203859 DUAL DISPLAY SYSTEM MOSCOVITCH, JERRY (Canada) 2017-04-28
2203927 MICROWAVE METHOD TO DETECT AND LOCATE CANCERS IN HETEROGENOUS TISSUES BRIDGES, JACK E. (United States of America) 2017-04-28
2251629 NEPHELOMETER AND TURBIDIMETER COMBINATION BECKMAN COULTER, INC. (United States of America) 2017-04-28
2252441 APPARATUS AND METHOD FOR TREATING STORM WATER RUNOFF CONTECH ENGINEERED SOLUTIONS LLC (United States of America) 2017-04-28
2253396 IMMUNOCHROMATOGRAPHIC ASSAY DEVICE DAINABOT CO., LTD. (Japan) 2017-04-28
2253403 A METHOD FOR DETERMINING THE MATURITY AND QUALITY OF SEEDS AND AN APPARATUS FOR SORTING SEEDS STICHTING DIENST LANDBOUWKUNDIG ONDERZOEK (Netherlands) 2017-04-28
2253519 HOT GAS FILTER AND SYSTEM ASSEMBLY WESTINGHOUSE ELECTRIC CORPORATION (United States of America) 2017-04-28
2269880 BIOCIDAL COATING COMPOSITION ALISTAGEN CORPORATION (United States of America) 2017-04-28
2287903 METHOD FOR TREATING MEDICAL CONDITIONS USING A MICROPROCESSOR-BASED VIDEO GAME HEALTH HERO NETWORK, INC. (United States of America) 2017-04-28
2203961 STORAGE-STABLE FIBRINOGEN PREPARATIONS BAXTER INTERNATIONAL INC. (United States of America) BAXTER HEALTHCARE SA (Switzerland) 2017-04-29
2203964 ACTIVE ARRAY SELF CALIBRATION RAYTHEON COMPANY (United States of America) 2017-04-29
2203965 SELF-PHASE UP OF ARRAY ANTENNAS WITH NON-UNIFORM ELEMENT MUTUAL COUPLING AND ARBITRARY LATTICE ORIENTATIONS RAYTHEON COMPANY (United States of America) 2017-04-29
2203970 METHOD AND APPARATUS FOR VIDEO LUMBER GRADING USNR/KOCKUMS CANCAR COMPANY (United States of America) 2017-04-29
2203986 AEROSOL-FORMING COMPOSITION FOR THE PURPOSE OF EXTINGUISHING FIRES AND METHOD FOR THE PREPARATION OF THIS COMPOSITION R-AMTECH INTERNATIONAL, INC. (United States of America) 2017-04-29
2203988 NON SLIPPING LAMINATE MULTIFILAMENT OUTER SHELL FOR FIREFIGHTER GARMENT SPERIAN PROTECTIVE APPAREL, LTD. (Canada) 2017-04-29
2226497 MODULAR FORMWORK FOR CONCRETE CFS CONCRETE FORMING SYSTEMS INC. (Canada) 2017-04-29
2251702 BIOLOGICALLY ACTIVE COMPOSITION JAGOTEC AG (Switzerland) 2017-04-29
2252679 INTEGRAL MULTI-LAYERED ION-EXCHANGE COMPOSITE MEMBRANES W. L. GORE & ASSOCIATES, INC. (United States of America) 2017-04-29
2253239 ANTIBODIES AGAINST INTERFERON ALPHA/BETA RECEPTOR YEDA RESEARCH AND DEVELOPMENT CO. LTD. (Israel) 2017-04-29
2253266 DUPLICATED HOME LOCATION REGISTERS IN A MOBILE RADIO SYSTEM ERICSSON, INC. (United States of America) 2017-04-29
2253280 METHOD AND APPARATUS FOR CREATING CONTROLLED FLOWS IN TWO MUTUALLY SEPARABLE SOLUTIONS OUTOTEC OYJ (Finland) 2017-04-29
2253281 METHOD AND APPARATUS FOR RECIRCULATING A HEAVIER SOLUTION FROM THE SEPARATION PART OF TWO SEPARABLE SOLUTIONS INTO A MIXING UNIT OUTOTEC OYJ (Finland) 2017-04-29
2253290 METHOD AND APPARATUS FOR ADJUSTING THE BOUNDARY SURFACE BETWEEN TWO CONTROLLABLY FLOWING AND MUTUALLY SEPARABLE SOLUTIONS AND FOR CONDUCTING BOTH SOLUTIONS OUT OF THE SEPARATION PART OUTOTEC OYJ (Finland) 2017-04-29
2253470 DETERGENT COMPOSITIONS UNILEVER PLC (United Kingdom) 2017-04-29
2254837 FLOOR TREATING COMPOSITION DIVERSEY, INC. (United States of America) 2017-04-29
2258533 REEL WEB TURN-UP DEVICE METSO PAPER INC. (Finland) 2017-04-29
2258701 CARBOXAMIDE DERIVATIVES OF PYRROLIDINE, PIPERIDINE AND HEXAHYDROAZEPINE FOR THE TREATMENT OF THROMBOSIS DISORDERS ORTHO-MCNEIL PHARMACEUTICAL, INC. (United States of America) 2017-04-29
2261590 APPARATUS AND METHOD FOR REMOVING CONDENSABLE MATERIAL FLAIR CORPORATION (United States of America) 2017-04-29
2278536 COLOR STABLE IRON FORTIFIED DRY DRINK MIXES, READY-TO-DRINK BEVERAGES AND FOODS OTHER THAN BEVERAGES THAT OPTIONALLY CONTAIN ZINC THE PROCTER & GAMBLE COMPANY (United States of America) 2017-04-29
2288894 THREE-DIMENSIONAL SPINE REMEDYING APPARATUS WANG, HUALAN (China) ZHANG, JILIN (China) 2017-04-29
2610436 CARBOXAMIDE DERIVATIVES OF PYRROLIDINE, PIPERIDINE AND HEXAHYDROAZEPINE FOR THE TREATMENT OF THROMBOSIS DISORDERS ORTHO-MCNEIL PHARMACEUTICAL, INC. (United States of America) 2017-04-29

List auto-generated on April 22, 2017

Canadian Intellectual Property