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
2302881 METHOD FOR QUANTIFICATION OF AN ANALYTE ROCHE DIAGNOSTICS GMBH (Germany) UNIVERSITY OF UTAH (United States of America) The common representative is: UNIVERSITY OF UTAH 2020-03-29
2302904 SNOWMOBILE EXTRICATING APPARATUS AND METHOD SNOBUNJE INCORPORATED (United States of America) 2020-03-29
2302910 PROJECTIONS ON FACE OF ELECTRICAL RECEPTACLE FOR PREVENTING INADVERTENT TRIPPING OF TEST SWITCH BY OVERSIZED ELECTRICAL PLUG HUBBELL INCORPORATED (United States of America) 2020-03-29
2302919 COMBINED RADIO FREQUENCY AND ULTRASONIC SURGICAL DEVICE ETHICON ENDO-SURGERY, INC. (United States of America) 2020-03-29
2302926 ONE-TRIP CASING CUTTING AND REMOVAL APPARATUS BAKER HUGHES INCORPORATED (United States of America) 2020-03-29
2302965 PROCESSES AND INTERMEDIATES FOR PREPARING ANTI-CANCER COMPOUNDS OSI PHARMACEUTICALS, INC. (United States of America) PFIZER PRODUCTS INC. (United States of America) The common representative is: OSI PHARMACEUTICALS, INC. 2020-03-29
2302966 LADDER ANODE FOR CATHODIC PROTECTION HURON TECH CANADA, INC. (Canada) 2020-03-29
2302967 A RESIN COMPOSITION FOR A NON-WOVEN FABRIC-LIKE DESIGN AND PROCESS FOR PRODUCING A MOLDED ARTICLE OF A RESIN HAVING A NON-WOVEN FABRIC-LIKE DESIGN DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD. (Japan) 2020-03-29
2302968 CENTRIFUGE CONTROL SYSTEM AND METHOD WITH OPERATION MONITORING AND PUMP CONTROL M-I L.L.C. (United States of America) 2020-03-29
2302971 PAIRED ROW FURROW OPENER CNH CANADA, LTD./LTEE. (Canada) 2020-03-29
2303040 SPANNING MEMBER WITH CONVOLUTED WEB, C-SHAPED FLANGES, AND END PLATE WILIAN HOLDING COMPANY (United States of America) 2020-03-29
2303042 VEHICLE AIR SUSPENSION SYSTEM IMT STANDEN’S LIMITED PARTNERSHIP (Canada) 2020-03-29
2303705 PC SOUND CARD INTERNAL FRONT/BACK CONNECTIONS ADAPTER KISILEWICZ, JACEK (Canada) 2020-03-29
2304399 ADVANCED CHECK VALVE WITH ELASTOMER O-RING DEFINOX SAS (France) 2020-03-29
2333504 CORE HOLDING MECHANISM AND LABEL ADJUSTING GUIDE FOR ROLL-SHAPED LABEL OF LABEL STICKING MACHINE KABUSHIKI KAISHA SATO (Japan) 2020-03-29
2363420 SYSTEM AND METHOD FOR INTEGRATING AUDIO AND VISUAL MESSAGING WIRELESS SCIENCE, LLC (United States of America) 2020-03-29
2363921 METHOD AND APPARATUS FOR CONTROLLED HYDRATION GRAIN COOKING HORN, DARRELL C. (United States of America) 2020-03-29
2364530 WATER PLASTICIZED HIGH REFRACTIVE INDEX POLYMER FOR OPHTHALMIC APPLICATIONS ADVANCED VISION SCIENCE INC. (Not Available) 2020-03-29
2365479 TRANSGENIC PLANT RESISTANT TO MYCOTOXINS AND METHODS SYNGENTA PARTICIPATIONS AG (Switzerland) 2020-03-29
2366399 ANTIMICROBIAL ULTRA-MICROFIBER CLOTH SWEPORTS LIMITED (United States of America) 2020-03-29
2366456 METHOD AND APPARATUS FOR FORMING MELT-BLOWN FILTER CARTRIDGES HAVING MELT-BLOWN CORE ELEMENTS, AND THE FILTER CARTRIDGES FORMED THEREBY PALL CORPORATION (United States of America) 2020-03-29
2366581 INTRA-ROW PERMUTATION FOR TURBOCODE APPLE INC. (United States of America) 2020-03-29
2366754 ORAL PHARMACEUTICAL COMPOSITIONS CONTAINING LONG-CHAIN TRIGLYCERIDES AND LIPOPHILIC SURFACTANTS R.P. SCHERER TECHNOLOGIES, INC. (United States of America) 2020-03-29
2367075 METHOD AND SYSTEM FOR TESTING A BOREHOLE BY THE USE OF A MOVABLE PLUG STATOIL PETROLEUM AS (Norway) 2020-03-29
2367940 AQUEOUS DISINFECTANT AND HARD SURFACE CLEANING COMPOSITION AND METHOD OF USE SPARTAN CHEMICAL COMPANY, INC (United States of America) 2020-03-29
2368030 A VSC-CONVERTER ABB SCHWEIZ AG (Switzerland) 2020-03-29
2368413 DERIVATIVES OF PYRIMIDO[6,1-A]ISOQUINOLIN-4-ONE VERONA PHARMA PLC (Canada) 2020-03-29
2368764 MEGAVOLTAGE COMPUTED TOMOGRAPHY DURING RADIOTHERAPY WISCONSIN ALUMNI RESEARCH FOUNDATION (United States of America) 2020-03-29
2370309 LOGGING OF DETONATOR USAGE SMI TECHNOLOGY (PTY) LIMITED (Not Available) 2020-03-29
2375299 TEMPERATURE CONTROL APPARATUS, METHOD AND MEMORY MEDIUM FOR AN OVEN THE GARLAND GROUP (United States of America) 2020-03-29
2427221 PROCESS AND INTERMEDIATES FOR PREPARING ANTI-CANCER COMPOUNDS OSI PHARMACEUTICALS, INC. (United States of America) PFIZER PRODUCTS INC. (United States of America) The common representative is: OSI PHARMACEUTICALS, INC. 2020-03-29
2552985 LABEL ROLL CORE HOLDER ASSOCIATED SYSTEM AND LABEL REGULATING GUIDE IN LABELER KABUSHIKI KAISHA SATO (Japan) 2020-03-29
2559615 LABEL ROLL CORE HOLDER ASSOCIATED SYSTEM AND LABEL REGULATING GUIDE IN LABELER KABUSHIKI KAISHA SATO (Japan) 2020-03-29
2301392 DESENSITISATION OF ENERGETIC MATERIALS BAE SYSTEMS LAND SYSTEMS (MUNITIONS & ORDNANCE) LIMITED (United Kingdom) 2020-03-30
2303515 METHOD OF FORMING SHAPED BODY OF BRITTLE ULTRA FINE PARTICLE AT LOW TEMPERATURE SECRETARY OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan) 2020-03-30
2303542 METHOD FOR CERTIFYING PUBLIC KEYS USED TO SIGN POSTAL INDICIA AND INDICIA SO SIGNED PITNEY BOWES INC. (Not Available) BLACKBERRY LIMITED (Not Available) The common representative is: PITNEY BOWES INC. 2020-03-30
2303548 THREE DIMENSIONAL ANIMATION SYSTEM AND METHOD LAASTRA TELECOM GMBH LLC (United States of America) 2020-03-30
2304402 INSTALLATION OF LIQUID HYDROCARBONS EQUIPPED WITH A MEANS OF VAPOUR RECOVERY TOKHEIM SERVICES FRANCE (France) 2020-03-30
2333731 ORGANOMETALLIC COMPLEX MOLECULE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME LG CHEMICAL LTD. (Republic of Korea) 2020-03-30
2366584 COMPOSITE COMPRISING STRUCTURAL AND NON STRUCTURAL FIBERS MATRICE MATERIAL SYSTEMS LIMITED (United Kingdom) CYTEC TECHNOLOGY CORP. (United States of America) The common representative is: CYTEC TECHNOLOGY CORP. 2020-03-30
2367036 INVERTED MICROSTRIP TRANSMISSON LINE INTEGRATED IN A MULTILAYER STRUCTURE PROVENANCE ASSET GROUP LLC (United States of America) 2020-03-30
2367679 HOLDING OR COOKING OVEN DUKE MANUFACTURING COMPANY (United States of America) 2020-03-30
2367951 METHODS FOR MANUFACTURING FOAM MATERIAL INCLUDING SYSTEMS WITH PRESSURE RESTRICTION ELEMENT TREXEL, INC. (United States of America) 2020-03-30
2368184 METHOD AND MEANS FOR TREATING POST-POLIO SYNDROME GRIFOLS NORDIC AB (Sweden) 2020-03-30
2368199 MILLING DEVICE BUHLER AG (Switzerland) 2020-03-30
2368423 METHOD FOR SELECTIVELY SEPARATING BLOOD CELLS BY USING LECTIN NETECH INC. (Japan) 2020-03-30
2368563 TRAFFIC MONITORING APPARATUS AND METHOD USING AN INDUCTIVE LOOP SENSOR NEOLOGY, INC. (Not Available) 2020-03-30
2368570 LOOP SENSING APPARATUS FOR TRAFFIC DETECTION NEOLOGY, INC. (Not Available) 2020-03-30
2368677 INTRAMYOCARDIAL INJECTION OF AUTOLOGOUS BONE MARROW KORNOWSKI, RAN (Israel) FUCHS, SHMUEL (United States of America) EPSTEIN, STEPHEN E. (United States of America) LEON, MARTIN B. (United States of America) The common representative is: FUCHS, SHMUEL 2020-03-30
2368734 METHOD FOR PREPARING MONOCLONAL ANTIBODY JAPAN TOBACCO INC. (Japan) AMGEN FREMONT INC. (United States of America) The common representative is: JAPAN TOBACCO INC. 2020-03-30
2368758 PROCESSES FOR PREPARING PESTICIDAL INTERMEDIATES BOEHRINGER INGELHEIM ANIMAL HEALTH (USA) INC. (United States of America) 2020-03-30
2369451 COMPOSITION BASED ON OPPOSITELY-CHARGED POLYPEPTIDES GENENTECH, INC. (United States of America) 2020-03-30
2370775 USE OF A SERENOA REPENS EXTRACT FOR THE PRODUCTION OF A MEDICAMENT TO TREAT PROSTATE CANCER PIERRE FABRE MEDICAMENT (France) 2020-03-30
2565947 OVEN COMPRISING A CABINET AND A PLURALITY OF TRAYS DUKE MANUFACTURING COMPANY (United States of America) 2020-03-30
2566819 HEATING DEVICE COMPRISING A TRAY WITH A COVER DUKE MANUFACTURING COMPANY (United States of America) 2020-03-30
2303526 HEPATITIS C VIRUS CELL CULTURE SYSTEM BARTENSCHLAGER, RALF (Germany) 2020-03-31
2303531 ELECTRICAL POWER DISTRIBUTION SWITCH S&C ELECTRIC COMPANY (United States of America) 2020-03-31
2303571 APPARATUS FOR THE PRODUCTION OF STUFFED SAUSAGE PRODUCTS VEMAG MASCHINEN- UND ANLAGENBAU GMBH (Germany) 2020-03-31
2303603 VOLTAGE SENSING ARRANGEMENT S&C ELECTRIC COMPANY (United States of America) 2020-03-31
2303613 SPECTROMETER CARL ZEISS JENA GMBH (Germany) X-RITE SWITZERLAND GMBH (Switzerland) The common representative is: CARL ZEISS JENA GMBH 2020-03-31
2303614 TRANSDUCER BUILT INTO AN ELECTRODE CHRYSLER GROUP LLC (Not Available) 2020-03-31
2303619 SUPPORT STRUCTURES ARJOHUNTLEIGH MAGOG INC. (Canada) 2020-03-31
2303625 IMPROVED CONTACT TOASTER A.J. ANTUNES & CO. (United States of America) 2020-03-31
2303639 METHOD FOR ACCELERATING PLANT GROWTH WITH A PROTECTIVE COVERING HINSPERGERS POLY INDUSTRIES, LTD. (Canada) 2020-03-31
2303644 DECORATIVE BASE PAPER WITH AN INK-JET RECEIVING LAYER TECHNOCELL DEKOR GMBH & CO. KG (Germany) 2020-03-31
2303650 MULTIPLE COHERENT JET LANCE PRAXAIR TECHNOLOGY, INC. (United States of America) 2020-03-31
2304261 A MULTIPLY BAG WITH TEAR STRIP OPENING MECHANISM TRANSCONTINENTAL US LLC (Not Available) 2020-03-31
2304264 BRACKET FOR BRIDGING MEMBER FOR METAL STUD WALL BAILEY METAL PRODUCTS LIMITED (Not Available) 2020-03-31
2304290 METHOD OF TREATING A ROCK CHIP IN A VEHICULAR WINDSHIELD CHOMAY, EDWARD JOHN (Canada) 2020-03-31
2304324 METHOD AND APPARATUS FOR ROASTING COFFEE NXT ROASTERS INC. (Canada) 2020-03-31
2304325 STENT WITH VARIABLE WALL THICKNESS CORDIS CORPORATION (United States of America) 2020-03-31
2331217 METHOD AND SYSTEM FOR ANALYZING FAULT LOG DATA FOR DIAGNOSTICS AND REPAIRS OF LOCOMOTIVES GENERAL ELECTRIC COMPANY (United States of America) 2020-03-31
2334132 METHOD AND APPARATUS FOR AUTOMATICALLY IDENTIFYING SYSTEM FAULTS IN AN OPTICAL COMMUNICATIONS SYSTEM FROM REPEATER LOOP GAIN SIGNATURES SUBCOM, LLC (Not Available) 2020-03-31
2365079 ANTIPERSPIRANT STRUCTURED EMULSION COMPOSITIONS UNILEVER PLC (United Kingdom) 2020-03-31
2365418 PHOSPHATASES WITH IMPROVED PHYTASE ACTIVITY CORNELL RESEARCH FOUNDATION, INC. (United States of America) 2020-03-31
2366586 NON-CALCEMIC, ANTIPROLIFERATIVE, TRANSCRIPTIONALLY ACTIVE SULFUR-CONTAINING ANALOGS OF 1.ALPHA., 25-DIHYDROXY VITAMIN D3 JOHNS HOPKINS UNIVERSITY (United States of America) 2020-03-31
2366787 COMPOSITIONS AND METHODS FOR TREATING LYMPHOMA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (United States of America) TALON THERAPEUTICS, INC. (United States of America) The common representative is: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM 2020-03-31
2366815 HEELING APPARATUS AND METHOD HEELING SPORTS LIMITED (United States of America) 2020-03-31
2368750 KAOLIN CLAY PIGMENTS, THEIR PREPARATION AND USE IMERYS PIGMENTS, INC. (United States of America) 2020-03-31
2368778 A PHOTONIC CRYSTAL FIBRE AND A METHOD FOR ITS PRODUCTION NKT RESEARCH & INNOVATION A/S (Denmark) 2020-03-31
2368857 LOGISTICS SYSTEM AND METHOD WITH POSITION CONTROL HERZOG CONTRACTING CORPORATION (United States of America) 2020-03-31
2369022 VACUUM ASSISTED CLOSURE SYSTEM WITH HEATING AND COOLING PROVISION KCI LICENSING, INC. (United States of America) 2020-03-31
2369686 CONTAINER HANDLE AND RELATED METHODS ROPAK CORPORATION (United States of America) 2020-03-31
2369977 METHOD FOR PRODUCING PHYTOSTEROLS FROM REDUCED QUANTITIES OF METHANOL BY CRYSTALLIZATION COGNIS IP MANAGEMENT GMBH (Germany) 2020-03-31
2372075 APPARATUS AND METHOD FOR ALIGNING TUBULARS WEATHERFORD TECHNOLOGY HOLDINGS, LLC (Not Available) 2020-03-31
2402322 METHOD AND APPARATUS FOR A CATALYTIC FIREBOX REACTOR PRECISION COMBUSTION, INC. (United States of America) 2020-03-31
2402788 CASE WITH SPLIT PANELS TEAM FAIR HOLDINGS LIMITED (Virgin Islands (British)) 2020-03-31
2471124 CHANNEL ESTIMATION DEVICE AND METHOD, DEMODULATION DEVICE AND METHOD, AND FADING FREQUENCY DECISION DEVICE AND METHOD NTT DOCOMO, INC. (Japan) 2020-03-31
2535872 FADING FREQUENCY DECISION DEVICE AND METHOD NTT DOCOMO, INC. (Japan) 2020-03-31
2727686 CHANNEL ESTIMATION DEVICE AND METHOD, DEMODULATION DEVICE AND METHOD, AND FADING FREQUENCY DECISION DEVICE AND METHOD NTT DOCOMO, INC. (Japan) 2020-03-31
2333956 SELF ALIGNING OPTICAL FIBER TERMINATOR PERKINELMER INSTRUMENTS LLC (United States of America) 2020-04-01
2303658 STORM OR WASTE WATER CHAMBER FEATURING STRAIN RELIEF NOTCHES FOR IMPROVED FLEXIBILITY AND CONTOURING THE CHAMBER DITULLIO, ROBERT J. (United States of America) 2020-04-03
2303660 LUBRICATING OIL COMPOSITIONS INFINEUM INTERNATIONAL LIMITED (United Kingdom) 2020-04-03
2303686 FREEWHEEL CLUTCH HEINZ KETTLER GMBH & CO. (Not Available) 2020-04-03
2303687 VEHICLE STEERING HEAD KETTLER INTERNATIONAL, INC. (United States of America) 2020-04-03
2304418 LASER SYSTEM PROVIDING POWER RAMP-UP AND METHOD OF OPERATING SAME HOYA PHOTONICS,INC. (United States of America) 2020-04-03
2304419 METHOD OF POSITIONING SHEET ELEMENTS IN THE INTRODUCTION STATION OF A PROCESSING MACHINE AND A SYSTEM FOR PERFORMING THE METHOD BOBST S.A. (Switzerland) 2020-04-03
2307461 PROCESS FOR APPLICATION OF A FLUOROPOLYMER COATING TO A THREADED FASTENER NYLOK CORPORATION (United States of America) 2020-04-03
2332990 ADDRESS GENERATOR AND ADDRESS GENERATING METHOD FOR USE IN A TURBO INTERLEAVER/DEINTERLEAVER SAMSUNG ELECTRONICS CO., LTD. (Republic of Korea) 2020-04-03
2333032 INTERLEAVING / DEINTERLEAVING APPARATUS AND METHOD FOR A COMMUNICATION SYSTEM HUAWEI TECHNOLOGIES CO. (China) 2020-04-03
2366816 FOOD SERVING AND PAN SYSTEM THE VOLLRATH COMPANY, L.L.C. (United States of America) 2020-04-03
2368662 COMPOSITIONS AND PROCESS FOR NEMATODE CONTROL ILLOVO SUGAR LIMITED (South Africa) 2020-04-03
2368855 DIFFERENTIATION OF MONOCYTES INTO FUNCTIONAL DENDRITIC CELLS EDELSON, RICHARD LESLIE (United States of America) BERGER, CAROLE L. (United States of America) The common representative is: BERGER, CAROLE L. 2020-04-03
2369636 ENHANCED HERBICIDE COMPOSITIONS MONSANTO TECHNOLOGY LLC (United States of America) 2020-04-03
2369738 METHOD OF ENHANCING BIOLOGICAL EFFECTIVENESS OF PLANT TREATMENT COMPOSITIONS MONSANTO TECHNOLOGY LLC (United States of America) 2020-04-03
2371650 HEADEND PROVISIONING AGENT COMCAST CABLE COMMUNICATIONS, LLC (United States of America) 2020-04-03
2373377 WALL PROTECTION FROM DOWNWARD FLOWING SOLIDS THE BABCOCK & WILCOX COMPANY (United States of America) 2020-04-03
2401692 FASTENING-TYPE SECURITY SEAL ELC PRODUTOS DE SEGURANCA INDUSTRIA E COMERCIO LTDA. (Brazil) 2020-04-03
2303698 MOISTURE-CURABLE COMPOSITIONS CONTAINING POLYISOCYANATES AND POLYACRYLATES HAVING ALKOXYSILANE GROUPS BAYER CORPORATION (United States of America) 2020-04-04
2303707 AN IMPROVED SPHERICAL PLAIN BEARING AND METHOD OF MANUFACTURING THEREOF ROLLER BEARING COMPANY OF AMERICA (United States of America) 2020-04-04
2304411 STEERING SKI FOR SNOW VEHICLES YAMAHA HATSUDOKI KABUSHIKI KAISHA (Japan) 2020-04-04
2304412 AUGER FLOW CONTROL SPOUT WITH PRESSURE RELIEF TOFIN, DARCY (Canada) 2020-04-04
2341181 METHOD AND APPARATUS FOR DETERMINING POSITION IN A PIPE WEATHERFORD TECHNOLOGY HOLDINGS, LLC (Not Available) 2020-04-04
2366542 MONITORING LEAKAGE CURRENTS FROM HIGH-VOLTAGE DEVICES DOBLE ENGINEERING COMPANY (United States of America) 2020-04-04
2366591 REDUCTION OF PEAK-TO-AVERAGE POWER RATIO IN A MOBILE TELECOMMUNICATIONS SYSTEM TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (Not Available) 2020-04-04
2366775 SUTURE WELDING DEVICE MICROLINE SURGICAL, INC. (United States of America) 2020-04-04
2367237 DECORATIVE FOIL OVD KINEGRAM AG (Switzerland) 2020-04-04
2367855 STORAGE CONTAINER CONNOLLY, JAMES PATRICK (United Kingdom) 2020-04-04
2368770 PACKET DISCARD NOTIFICATION FOR SEMI RELIABLE RETRANSMISSION PROTOCOL WI-FI ONE, LLC (United States of America) 2020-04-04
2370697 ADJUVANT COMPOSITION COMPRISING SAPONIN AND AN IMMUNOSTIMULATORY OLIGONUCLEOTIDE SMITHKLINE BEECHAM BIOLOGICALS S.A. (Belgium) 2020-04-04
2374763 COMPOSITION FOR IMPROVING SKIN LIPID BARRIER FUNCTION COLOR ACCESS, INC. (United States of America) 2020-04-04
2376071 CEREAL SORTING SYSTEM AND ROLL SORTING MACHINE HARADA SANGYO CO., LTD. (Japan) 2020-04-04

List auto-generated on March 28, 2020

Canadian Intellectual Property