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