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
2344033 A NOVEL GAS-SOLID SEPARATOR FOR FLUIDIZED BED BOILER BASU, PRABIR (Canada) 2021-04-18
2344273 METHOD OF AND DEVICE FOR ROTARY CASTING VAW MANDL & BERGER GMBH (Austria) 2021-04-18
2344321 METHOD OF FABRICATING A BACKWATER VALVE COSCARELLA, GABE (Canada) 2021-04-18
2344617 ENCLOSED RETRACTABLE PANEL MADE FROM CELL-INSIDE-A-CELL HONEYCOMB MATERIAL HUNTER DOUGLAS INC. (United States of America) 2021-04-18
2344627 METHOD OF DYNAMICALLY CONTROLLING BOTTOM HOLE CIRCULATING PRESSURE IN A WELLBORE WEATHERFORD CANADA LTD. (Canada) 2021-04-18
2344631 BENT SUB ASSEMBLY FOR DIRECTIONAL DRILLING CAVARE LTD. (Canada) 2021-04-18
2344744 ROTATING BLOWOUT PREVENTER WITH INDEPENDENT COOLING CIRCUITS AND THRUST BEARING WEATHERFORD CANADA LTD. (Canada) 2021-04-18
2376616 METHOD AND APPARATUS FOR TREATING OF WATER/WASTEWATER PARKSON CORPORATION (United States of America) 2021-04-18
2404976 APPARATUS AND METHOD FOR PROJECTING A 3D IMAGE FARO TECHNOLOGIES, INC. (United States of America) 2021-04-18
2405097 COLOURED OPHTHALMIC PRODUCT ALCON INC. (United States of America) 2021-04-18
2405468 GASEOUS AND LIQUID FUEL INJECTOR WITH A TWO-WAY HYDRAULIC FLUID CONTROL VALVE WESTPORT POWER INC. (Canada) 2021-04-18
2405891 AXLE CLAMP ATTACHMENT SYSTEM HENDRICKSON INTERNATIONAL CORPORATION (United States of America) 2021-04-18
2406075 SPACE WEATHER PREDICTION SYSTEM AND METHOD CARMEL SYSTEMS LLC (United States of America) 2021-04-18
2406141 IMPROVEMENTS TO MODULAR BUILDINGS AND MATERIALS USED IN THEIR CONSTRUCTION ABERSHAM TECHNOLOGIES LIMITED (Gibraltar) 2021-04-18
2406151 DATA ALLOCATION WITH VARIABLE SNR MARGINS TQ DELTA, LLC (United States of America) 2021-04-18
2406258 SHAM-SENSITIVE TERMINAL OXIDASE GENE FROM XYLOSE-FERMENTING YEAST WISCONSIN ALUMNI RESEARCH FOUNDATION (United States of America) THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF AGRICULTURE (United States of America) 2021-04-18
2407137 WRAP-AROUND CABLE SLEEVES HAVING AN EXPANDABLE BODY PORTION AND METHODS OF MAKING SAME TE CONNECTIVITY CORPORATION (United States of America) 2021-04-18
2407950 METHOD FOR INSTALLING AN IGNITION SYSTEM AND IGNITION SYSTEM ORICA EXPLOSIVES TECHNOLOGY PTY LIMITED (Australia) 2021-04-18
2409254 METHODS AND SYSTEMS FOR LOW LOSS SEPARATION AND COMBINATION OF LIGHT IMAX CORPORATION (Canada) 2021-04-18
2421640 APPARATUS FOR PROCESSING MEDICAL WASTE POSITIVE IMPACT WASTE SOLUTIONS, INC. (United States of America) 2021-04-18
2444390 CHARGE BARRIER FLOW-THROUGH CAPACITOR VOLTEA, INC. (United States of America) 2021-04-18
2742130 SPACE WEATHER PREDICTION SYSTEM AND METHOD CARMEL SYSTEMS LLC (United States of America) 2021-04-18
2742131 SPACE WEATHER PREDICTION SYSTEM AND METHOD CARMEL SYSTEMS LLC (United States of America) 2021-04-18
2344592 ROTARY ARTICULATED PUSHER FOR REMOVING ITEMS, SUCH AS LUGGAGE, FROM A CONVEYOR BELT G & T CONVEYOR COMPANY, INC. (United States of America) 2021-04-19
2344729 INTELLIGENT THRU TUBING BRIDGE PLUG WITH DOWNHOLE INSTRUMENTATION BAKER HUGHES INCORPORATED (United States of America) 2021-04-19
2376752 EYE REGISTRATION AND ASTIGMATISM ALIGNMENT CONTROL SYSTEMS AND METHOD ALCON INC. (United States of America) 2021-04-19
2377010 ELECTROMECHANICAL PARKING METER DOOR COMMUNICATIONS INTERFACE MEDECO SECURITY LOCKS, INC. (United States of America) J.J. MACKAY CANADA LIMITED (Canada) 2021-04-19
2378479 FINE GLASS PARTICLE CONTAINING EMBEDDED OXIDE AND PROCESS FOR PRODUCING THE SAME NISSHIN SEIFUN GROUP INC. (Japan) 2021-04-19
2403653 IMPROVED THERMAL SPRAY POWDER SAINT-GOBAIN CERAMICS & PLASTICS, INC. (United States of America) 2021-04-19
2405100 A RADIO TELECOMMUNICATIONS SYSTEM AND METHOD OF OPERATING THE SAME WITH REDUCED DELAYS FOR DATA TRANSMISSION OVER A RADIO INTERFACE ERICSSON AB (Sweden) 2021-04-19
2405101 A CONNECTOR ELEMENT FOR HIGH-SPEED DATA COMMUNICATIONS CABLE DESIGN TECHNOLOGIES INC. (United States of America) 2021-04-19
2405787 METHOD FOR PREPARING MICROPARTICLES HAVING A SELECTED POLYMER MOLECULAR WEIGHT ALKERMES, INC. (United States of America) 2021-04-19
2406112 DEPHYTINIZATION OF PLANT BASED PRODUCTS IN MIXTURES WITH HIGH MOISTURE ANIMAL, PLANT OR MICROBIAL BY-PRODUCTS UNIVERSITY OF SASKATCHEWAN (Canada) 2021-04-19
2406130 L-GLUTAMATE OXIDASE YAMASA CORPORATION (Japan) 2021-04-19
2406277 SUSTAINED RELEASE DRUG DELIVERY DEVICES, METHODS OF USE, AND METHODS OF MANUFACTURING THEREOF EYEPOINT PHARMACEUTICALS US, INC. (United States of America) 2021-04-19
2406536 PREPARATION OF INJECTABLE SUSPENSIONS HAVING IMPROVED INJECTABILITY ALKERMES PHARMA IRELAND LIMITED (Ireland) 2021-04-19
2406831 METHOD AND SYSTEM FOR EMULATING A CHECK SORTER VECTORSGI, INC. (United States of America) 2021-04-19
2406865 LOW EXTRACORPOREAL VOLUME TREATMENT SYSTEM MALLINCKRODT HOSPITAL PRODUCTS IP LIMITED (Ireland) 2021-04-19
2407398 ARRANGEMENT FOR DAMPING OF STRUCTURAL RESONANCE BAE SYSTEMS PLC (United Kingdom) 2021-04-19
1341454 ALPHA-AMIDATING ENZYME COMPOSITIONS AND PROCESSES FOR THEIR PRODUCTION AND USE UNIGENE LABORATORIES, INC. (Not Available) 2021-04-20
2344713 SELF-SECURING RACEWAY END CAP HUBBELL INCORPORATED (United States of America) 2021-04-20
2344724 VENTILATED PLASTIC BAG HILEX POLY CO. LLC (United States of America) 2021-04-20
2344737 ENCAPSULATED MEMS BAND-PASS FILTER FOR INTEGRATED CIRCUITS AND METHOD OF FABRICATION THEREOF INTERNATIONAL BUSINESS MACHINES CORPORATION (United States of America) 2021-04-20
2344779 A BALE LIFTER HUSTLER EQUIPMENT LIMITED (New Zealand) 2021-04-20
2344801 GARBAGE OR RECYCLABLE MATERIALS HANDLING CONTAINER HAUL-ALL EQUIPMENT LTD. (Canada) 2021-04-20
2344802 METHOD AND APPARATUS FOR GROWING VINED PRODUCE DEFOOR, TERRIL R. (United States of America) 2021-04-20
2377690 INFORMATION PROCESSING METHOD AND APPARATUS, PROGRAM AND RECORDING MEDIUM SONY CORPORATION (Japan) 2021-04-20
2398364 PLASTIC CONTAINER AND METHOD OF PRODUCING THE SAME TOYO SEIKAN KAISHA, LTD. (Japan) 2021-04-20
2405048 COMBINED STEREOVISION, COLOR 3D DIGITIZING AND MOTION CAPTURE SYSTEM CREAFORM INC. (Canada) 2021-04-20
2405680 DIAGNOSTIC ASSAY AND METHOD OF TREATMENT INVOLVING MACROPHAGE INHIBITORY CYTOKINE -1 (MIC-1) ST. VINCENT’S HOSPITAL SYDNEY LIMITED (Australia) 2021-04-20
2405973 DRIVE CIRCUIT FOR A BRUSHLESS DC MOTOR MINEBEA CO., LTD. (Japan) 2021-04-20
2406008 COMPOSITION EXHIBITING ENHANCED FORMULATION STABILITY AND DELIVERY OF TOPICAL ACTIVE INGREDIENTS SOL-GEL TECHNOLOGIES LTD. (Israel) 2021-04-20
2406567 SINGLE USE SYRINGE UNITRACT SYRINGE PTY LTD (Australia) 2021-04-20
2406830 METHOD FOR MUTATION DETECTION IN HIV USING POL SEQUENCING VIRCO BVBA (Belgium) 2021-04-20
2407363 DEBITTERED CITRUS PULP AND PROCESSING TROPICANA PRODUCTS, INC. (United States of America) 2021-04-20
2411170 ONE-PIECE INNER NOZZLE AND CLAMPING DEVICE FOR HOLDING SUCH A NOZZLE VESUVIUS U S A CORPORATION (United States of America) 2021-04-20
2435261 METHOD FOR PRODUCING INSULATING MATERIALS FROM MINERAL FIBERS ROCKWOOL INTERNATIONAL A/S (Denmark) 2021-04-21
2344839 TRANSMISSION OF MOBILE UNIT REQUESTS IN WIRELESS UPLINK SYSTEMS LUCENT TECHNOLOGIES INC. (United States of America) 2021-04-23
2344842 COMBUSTIBLE GAS MEASUREMENT APPARATUS AND METHOD PASON SYSTEMS CORP. (Canada) 2021-04-23
2344859 METHOD AND DEVICE FOR CLOSING A DOOR OF AN AIRCRAFT AIRBUS HELICOPTERS DEUTSCHLAND GMBH (Germany) 2021-04-23
2344902 VOLTAGE SENSOR BUSHING ASSEMBLY WITH INTEGRAL CAPACITANCE SCREEN S&C ELECTRIC COMPANY (United States of America) 2021-04-23
2344903 POSITIVE ELECTRODE ACTIVE MATERIAL AND NON-AQUEOUS ELECTROLYTE CELL MURATA MANUFACTURING CO., LTD. (Japan) 2021-04-23
2344908 MODEL BASED FAULT DETECTION AND DIAGNOSIS METHODOLOGY FOR HVAC SUBSYSTEMS SIEMENS INDUSTRY, INC. (United States of America) 2021-04-23
2344930 DATA MONITORING SYSTEM HB CANADA COMMUNICATIONS LTD. (Canada) 2021-04-23
2406623 MINING MACHINE AND METHOD COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION (Australia) 2021-04-23
2406693 ADHESIVE ARTICLES WITH IMPROVED AIR EGRESS AND METHODS OF MAKING THE SAME AVERY DENNISON CORPORATION (United States of America) 2021-04-23
2406839 G-PROTEIN COUPLED RECEPTOR (GPCR) AGONISTS AND ANTAGONISTS AND METHODS OF ACTIVATING AND INHIBITING GPCR USING THE SAME TUFTS MEDICAL CENTER, INC. (United States of America) 2021-04-23
2406977 ADHESIVE ARTICLES WITH IMPROVED AIR EGRESS AND METHODS OF MAKING THE SAME AVERY DENNISON CORPORATION (United States of America) 2021-04-23
2796903 POSITIVE ELECTRODE ACTIVE MATERIAL AND NON-AQUEOUS ELECTROLYTE CELL MURATA MANUFACTURING CO., LTD. (Not Available) 2021-04-23
2344537 VEHICLE RESTRAINT WITH VERTICAL FLOAT RITE-HITE HOLDING CORPORATION (United States of America) 2021-04-24
2344752 IMPROVED METHOD AND APPARATUS FOR LOCKING CHARGES INTO A CHARGE HOLDER HALLIBURTON ENERGY SERVICES, INC. (United States of America) 2021-04-24
2344754 COILED TUBING WELLBORE CLEANOUT BJ SERVICES COMPANY CANADA (Canada) 2021-04-24
2344774 GAME SYSTEM AND PORTABLE GAME MACHINE NINTENDO CO., LTD. (Japan) 2021-04-24
2344785 METHOD OF CHRONO-STRATIGRAPHIC INTERPRETATION OF A SEISMIC CROSS SECTION OR BLOCK ELF EXPLORATION PRODUCTION (France) 2021-04-24
2344921 IMPINGEMENT AIR DRY PROCESS FOR MAKING ABSORBENT SHEET GPCP IP HOLDINGS LLC (United States of America) 2021-04-24
2377602 MULTI-NEURAL NET IMAGING APPARATUS AND METHOD INTERNATIONAL REMOTE IMAGING SYSTEMS, INC. (United States of America) 2021-04-24
2405345 JOINT REPAIR USING MESENCHYMAL STEM CELLS MESOBLAST INTERNATIONAL SARL (Switzerland) 2021-04-24
2405352 ANIMAL SHELTER AMERLIN,INC. (United States of America) 2021-04-24
2405710 METHOD AND APPARATUS FOR CREATING INTRAUTERINE ADHESIONS IMPRES MEDICAL, INC. (United States of America) 2021-04-24
2406064 MINIMIZING ADVERSE EXPERIENCE ASSOCIATED WITH OXYBUTYNIN THERAPY ALLERGAN SALES, LLC (United States of America) 2021-04-24
2406278 INHIBITORS OF HUMAN PHOSPHATIDYL-INOSITOL 3-KINASE DELTA ICOS CORPORATION (United States of America) 2021-04-24
2406454 HYDROFORMING A TUBULAR STRUCTURE OF VARYING DIAMETER FROM A TUBULAR BLANK USING ELECTROMAGNETIC PULSE WELDING COSMA INTERNATIONAL INC. (Canada) 2021-04-24
2406785 PACKAGING AND METHOD FOR SOLID DOSE ADMINISTRATION OF MEDICAMENTS SOLIDOSE, L.L.C. (United States of America) 2021-04-24
2407098 ANTIMICROBIAL COMPOSITION ECOLAB INC. (United States of America) 2021-04-24
2407215 METHOD AND SYSTEM FOR TREATING A HYDROCARBON CONTAINING FORMATION SHELL CANADA LIMITED (Canada) 2021-04-24
2407232 ELECTRICAL WELL HEATING SYSTEM AND METHOD SHELL CANADA LIMITED (Canada) 2021-04-24
2407666 PHASE-SEPARATING SOLVENT COMPOSITION ECOLAB INC. (United States of America) 2021-04-24
2409175 HIGH PERFORMANCE POWER CABLE SHIELD GENERAL CABLE TECHNOLOGIES CORPORATION (United States of America) 2021-04-24
2409351 METHOD FOR THE PRODUCTION OF MULTI-LAYER METAL COMPOSITE TUBES UPONOR INNOVATION AB (Sweden) 2021-04-24
2409709 SECURING SHELL ASSEMBLIES TO PIPELINES ADVANTICA INTELLECTUAL PROPERTY LIMITED (United Kingdom) 2021-04-24
2411280 COOLANT DELIVERY DEVICE PRIMETALS TECHNOLOGIES USA LLC (United States of America) 2021-04-24
2411415 FEEDING METHOD AND APPARATUS FOR DYNAMIC SEPARATORS ECOMIN SRL (Italy) 2021-04-24
2412055 DOUBLE SALTS OF FUMARIC ACID WITH A CARNITINE AND AN AMINO ACID AND FOOD SUPPLEMENTS, DIETARY SUPPLEMENTS AND DRUGS CONTAINING SAME ALFASIGMA S.P.A. (Italy) 2021-04-24
2637304 COILED TUBING WELLBORE CLEANOUT BAKER HUGHES CANADA COMPANY (Not Available) 2021-04-24
2644211 GAME SYSTEM AND PORTABLE GAME MACHINE NINTENDO CO., LTD. (Not Available) 2021-04-24

List auto-generated on April 17, 2021

Canadian Intellectual Property