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
2353733 IMPROVED PLUNGER LIFT WITH MULTIPART PISTON SUPERIOR ENERGY SERVICES, LLC (United States of America) 2021-07-25
2353746 CONTINUOUS LEVEL MEASUREMENT FOR GREASE SEPARATOR JOSAM COMPANY (United States of America) 2021-07-25
2353753 IMPROVED PROCESS FOR MANUFACTURE OF POLYVINYL CHLORIDE ARKEMA FRANCE (France) 2021-07-25
2353756 AN INK FOR PRODUCING MEMBRANE ELECTRODE UNITS FOR PEM FUEL CELLS UMICORE AG & CO. KG (Germany) 2021-07-25
2353762 OPTICAL TRANSMISSION LINK INCORPORATING HIGHPASS OPTICAL FILTERING LUCENT TECHNOLOGIES INC. (United States of America) LEHIGH UNIVERSITY (United States of America) 2021-07-25
2353806 POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND METHOD OF PREPARING SAME SAMSUNG SDI CO., LTD. (Republic of Korea) 2021-07-25
2354041 OVERLOAD PROTECTING DEVICE FOR SNOW REMOVING MACHINE HONDA GIKEN KOGYO KABUSHIKI KAISHA (Japan) 2021-07-25
2354094 MATTRESS SPRING CUSHION ASSEMBLY WITH COMBINATION OF RIGHT-HAND AND LEFT-HAND SPRING UNITS HICKORY SPRINGS MANUFACTURING COMPANY (United States of America) 2021-07-25
2354098 ELECTROSTATIC GROUNDING GLOVE SUPERIOR GLOVE WORKS LTD (Canada) 2021-07-25
2354105 REPLACEABLE RAKER ASSEMBLY FOR PROCESSING TOOL OF WASTE PROCESSING MACHINE SMORACY, LLC (United States of America) 2021-07-25
2385465 .ALPHA.-ISOMALTOSYLGLUCOSACCHARIDE-FORMING ENZYME, PROCESS AND USES OF THE SAME KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJO (Japan) 2021-07-25
2386201 METHOD OF ANALYSIS FOR THE PRESENCE OF WOOD TREATMENT SUBSTANCES ON WOOD KOP-COAT, INC. (United States of America) 2021-07-25
2404772 METHOD AND DEVICE FOR MANUFACTURING A DOUBLE-WALLED, THERMOPLASTIC TUBE WITH A CONNECTING SLEEVE LUPKE, MANFRED A. A. (Canada) LUPKE, STEFAN A. (Canada) 2021-07-25
2412416 IMPROVED WINDOW FOR GAN LED DALIAN MEIMING EPITAXY TECHNOLOGY CO., LTD. (China) 2021-07-25
2412419 IMPROVED BUFFER FOR GROWTH OF GAN ON SAPPHIRE DALIAN MEIMING EPITAXY TECHNOLOGY CO., LTD. (China) 2021-07-25
2412421 ENHANCED LIGHT-EMITTING DIODE DALIAN MEIMING EPITAXY TECHNOLOGY CO., LTD. (China) 2021-07-25
2412423 IMPROVED TRANSPARENT SUBSTRATE LIGHT EMITTING DIODE DALIAN MEIMING EPITAXY TECHNOLOGY CO., LTD. (China) 2021-07-25
2414725 IMPROVED GAN LIGHT EMITTING DIODE DALIAN MEIMING EPITAXY TECHNOLOGY CO., LTD. (China) 2021-07-25
2415292 SINGLE CLOCK REFERENCE FOR COMPRESSED DOMAIN PROCESSING SYSTEM WITH INTERSPERSED TRANSPORT PACKETS EAGLE TECHNOLOGIES, INC. (United States of America) 2021-07-25
2415299 SPLICING COMPRESSED, LOCAL VIDEO SEGMENTS INTO FIXED TIME SLOTS IN A NETWORK FEED HARRIS CORPORATION (United States of America) 2021-07-25
2416527 BICYCLO-PYRAZOLES ACTIVE AS KINASE INHIBITORS, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS COMPRISING THEM NERVIANO MEDICAL SCIENCES S.R.L. (Italy) 2021-07-25
2417092 NICKEL-PLATED BRAZING SHEET PRODUCT DANA CANADA CORPORATION (Canada) 2021-07-25
2417194 PARAMETERIZED GRAPHS WITH CONDITIONAL COMPONENTS AB INITIO TECHNOLOGY LLC (United States of America) 2021-07-25
2417244 VIDEO MESSAGING FACEBOOK, INC. (United States of America) 2021-07-25
2417284 CONNECTING DEVICE THE GLOW STORE, INC. (Canada) 2021-07-25
2417443 METHOD OF EVALUATING PERFORMANCE OF A HEMATOLOGY ANALYZER BIO-RAD LABORATORIES, INC. (United States of America) 2021-07-25
2418347 HIGH CONSISTENCY ABSORBABLE POLYMERIC RESIN TYCO HEALTHCARE GROUP LP (United States of America) 2021-07-25
2420307 AIR ADMITTANCE VALVE ASSEMBLY OATEY COMPANY (United States of America) 2021-07-25
2505805 ENHANCED LIGHT-EMITTING DIODE DALIAN MEIMING EPITAXY TECHNOLOGY CO., LTD. (China) 2021-07-25
2354203 FORMED LENS TAB FOR DESIGNATION CARD INSERT MITEL NETWORKS CORPORATION (Canada) 2021-07-26
2354217 PLUG BYPASS VALVES AND HEAT EXCHANGERS DANA CANADA CORPORATION / CORPORATION DANA CANADA (Canada) 2021-07-26
2354302 SWIMMING GOGGLES TABATA CO., LTD. (Japan) 2021-07-26
2354404 INNOVATIVE SHIPPING PACKAGE DELKOR SYSTEMS, INC. (United States of America) 2021-07-26
2354410 WET-CREPE PROCESS UTILIZING NARROW CREPE SHELF FOR MAKING ABSORBENT SHEET GPCP IP HOLDINGS LLC (United States of America) 2021-07-26
2416314 COPY PROTECTION FOR OPTICAL DISCS ROVI EUROPE LIMITED (United Kingdom) 2021-07-26
2416753 SUPERATMOSPHERIC COMBUSTOR FOR COMBUSTING LEAN CONCENTRATIONS OF A BURNABLE GAS FOSTER WHEELER USA CORPORATION (United States of America) 2021-07-26
2417001 METHOD FOR THE MANUFACTURE OF ANAGRELIDE SHIRE US INC. (United States of America) 2021-07-26
2417430 ELECTRONIC TIRE MANAGEMENT SYSTEM BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (United States of America) 2021-07-26
2417759 APPARATUS AND SYSTEM FOR THE CONTAINMENT OF OIL SPILLS NOFI TROMSO A/S (Norway) 2021-07-26
2418804 SUBSEA INTERVENTION SYSTEM EXXONMOBIL UPSTREAM RESEARCH COMPANY (United States of America) 2021-07-26
2419847 REMOVAL OF POLAR CONTAMINANTS FROM AROMATIC FEEDSTOCKS EXXONMOBIL CHEMICAL PATENTS INC. (United States of America) 2021-07-26
2419862 FLUID CONTROL AND PROCESSING SYSTEM CEPHEID (United States of America) 2021-07-26
2424319 VASCULAR OCCLUSION DEVICE, APPARATUS AND METHOD FOR USING SAME MIALHE, CLAUDE (France) 2021-07-26
2425170 DETERGENT AND DISINFECTANT COMPOSITION DIPL. ING. THONHAUSER GMBH (Austria) 2021-07-26
2676101 ELECTRONIC TIRE MANAGEMENT SYSTEM BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (United States of America) 2021-07-26
2676102 ELECTRONIC TIRE MANAGEMENT SYSTEM BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC (United States of America) 2021-07-26
2814576 FLUID CONTROL AND PROCESSING SYSTEM CEPHEID (United States of America) 2021-07-26
2928259 FLUID CONTROL AND PROCESSING SYSTEM CEPHEID (United States of America) 2021-07-26
2983994 FLUID CONTROL AND PROCESSING SYSTEM CEPHEID (United States of America) 2021-07-26
3014112 FLUID CONTROL AND PROCESSING SYSTEM CEPHEID (United States of America) 2021-07-26
2354257 SNOWPLOW MOUNTING ASSEMBLY DOUGLAS DYNAMICS, L.L.C. (United States of America) 2021-07-27
2354312 METHODS AND APPARATUS FOR SECURE PROGRAMMING OF AN ELECTRICITY METER ACLARA METERS LLC (United States of America) 2021-07-27
2354577 TRAILER U-HAUL INTERNATIONAL, INC. (United States of America) 2021-07-27
2384592 LIGHT ELEMENT TEST METHOD AND DEVICE USING THE LIGHT ELEMENT DRIVING CIRCUIT NICHIA CORPORATION (Japan) 2021-07-27
2384623 DISPLAY AND DISPLAY DRIVE CIRCUIT OR DISPLAY DRIVE METHOD NICHIA CORPORATION (Japan) 2021-07-27
2385916 JIB CRANE ISHIKAWAJIMA TRANSPORT MACHINERY CO., LTD. (Japan) 2021-07-27
2416137 VACCINES FOR BROAD SPECTRUM PROTECTION AGAINST DISEASES CAUSED BY NEISSERIA MENINGITIDIS CHILDREN’S HOSPITAL & RESEARCH CENTER AT OAKLAND (United States of America) 2021-07-27
2416723 DETECTABLE HEAVY DUTY NEEDLE NEOGEN CORPORATION (United States of America) 2021-07-27
2417150 QUANTITATIVE ANALYSIS OF HEXOSE-MONOPHOSPHATES FROM BIOLOGICAL SAMPLES STATENS SERUM INSTITUT (Denmark) 2021-07-27
2417334 PSYCHOLOGICAL TESTING METHOD AND APPARATUS COGSTATE, LTD. (Australia) 2021-07-27
2417495 METHODS FOR TREATING CELL PROLIFERATIVE DISORDERS AND VIRAL INFECTIONS SLOAN-KETTERING INSTITUTE FOR CANCER RESEARCH (United States of America) 2021-07-27
2417562 IMPROVED FUEL ADDITIVE FORMULATION AND METHOD OF USING SAME MAZOIL TECHNOLOGIES LIMITED (United States of America) 2021-07-27
2418829 PROCESS FOR THE PREPARATION OF BACCATIN III DERIVATIVES INDENA S.P.A. (Italy) 2021-07-27
2418868 4-PHENYL-PYRIDINE DERIVATIVES AS NEUROKININ-1 RECEPTOR ANTAGONISTS F. HOFFMANN-LA ROCHE AG (Switzerland) 2021-07-27
2431873 METHOD AND APPARATUS FOR TWO-COLOR THERMAL POINT OF SALE (POS) PRINTING TRANSACT TECHNOLOGIES INCORPORATED (United States of America) 2021-07-27
2723025 IMPROVED FUEL ADDITIVE FORMULATION AND METHOD OF USING SAME MAZOIL TECHNOLOGIES LIMITED (United States of America) 2021-07-27
2417607 LIPASE INHIBITORS FOR THE TREATMENT OF DYSPEPSIA CHEPLAPHARM ARZNEIMITTEL GMBH (Germany) 2021-07-28
2354300 PROCESS FOR DEHYDRATION OF BERRIES ENWAVE CORPORATION (Canada) 2021-07-30
2354315 TREE FELLING AND SHAPING APPARATUS QUADCO INC. (United States of America) 2021-07-30
2354332 METHOD OF ATTACHING MOLD RELEASING AGENT TO MOLDING DIE, MOLDING APPARATUS AND MOLDING DIE DENSO CORPORATION (Japan) 2021-07-30
2354344 A COMBUSTION CHAMBER INDUSTRIAL TURBINE COMPANY (UK) LIMITED (United Kingdom) 2021-07-30
2354406 AUXILIARY POWERED FOREST CLEARING IMPLEMENT NORDSTROM, C. RICHARD (United States of America) 2021-07-30
2354462 MEDICAL LINE STABILIZER IVY DEVICES INC. (Canada) 2021-07-30
2354467 DRY BREAK VALVE ASSEMBLY HILTAP FITTINGS, LTD. (Canada) 2021-07-30
2385694 SLIDER-OPERATED FASTENER WITH SPACED NOTCHES AND ASSOCIATED PRESEALS REYNOLDS PRESTO PRODUCTS INC. (Not Available) 2021-07-30
2385702 METHOD AND APPARATUS FOR MAKING RECLOSABLE PLASTIC BAGS USING A PRE-APPLIED SLIDER-OPERATED FASTENER REYNOLDS PRESTO PRODUCTS INC. (United States of America) 2021-07-30
2388544 AN ADVANTAGEOUS CARRIER SOLUTION FOR VITRIFIABLE CONCENTRATIONS OF CRYOPROTECTANTS, AND COMPATIBLE CRYOPROTECTANT MIXTURES 21ST CENTURY MEDICINE, INC. (United States of America) 2021-07-30
2416268 WHITE OIL EXTRUSION LUBRICANT SONNEBORN, LLC (United States of America) PETRO-CANADA LUBRICANTS INC. (Canada) 2021-07-30
2416293 SOMATOSTATIN ANALOGUES RECORDATI AG (Switzerland) 2021-07-30
2417235 LIPSTICK MOULDING MACHINE AND METHOD UNILEVER PLC (United Kingdom) 2021-07-30
2417369 PYRAZOL DERIVATIVES, PEST CONTROL AGENT COMPRISING THE SAME AS ACTIVE INGREDIENT, AND PROCESS FOR PRODUCING THE SAME NIHON NOHYAKU CO., LTD. (Japan) 2021-07-30
2417567 ALUMINIUM-BASED ALLOY AND METHOD OF FABRICATION OF SEMIPRODUCTS THEREOF EADS DEUTSCHLAND GMBH (Germany) ALL RUSSIAN INSTITUTE OF AVIATION MATERIALS VIAM (Russian Federation) 2021-07-30
2417570 TUMOR-SPECIFIC T CELL ACTIVATION BY PEPTIDE ANTIGENS BRIGHTPATH BIOTHERAPEUTICS CO., LTD. (Japan) 2021-07-30
2417663 ORTHOGONAL TECHNOLOGY FOR MULTI-LINE CHARACTER RECOGNITION RAF TECHNOLOGY, INC. (United States of America) 2021-07-30
2417934 TECHNIQUES FOR PERFORMING UMTS-AUTHENTICATION USING SIP (SESSION INITIATION PROTOCOL) MESSAGES NOKIA TECHNOLOGIES OY (Finland) 2021-07-30
2354340 DISPLAYABLE SHIPPING CARTON S.C. JOHNSON & SON, INC. (United States of America) 2021-07-31
2354346 HYPODERMIC SYRINGE WITH SELECTIVELY RETRACTABLE NEEDLE BECTON, DICKINSON AND COMPANY (United States of America) 2021-07-31
2354347 A DELIVERY APPARATUS FOR A SELF-EXPANDING STENT CARDINAL HEALTH 529, LLC (United States of America) 2021-07-31
2354367 A DELIVERY APPARATUS FOR A SELF-EXPANDING STENT CARDINAL HEALTH 529, LLC (United States of America) 2021-07-31
2354411 PROCESS FOR GUIDING A DEVICE FOR INSERTING ELEMENTS INTO THE GROUND IN PREPARATION FOR A WORK AND DEVICE FOR INSERTING AT LEAST ONE ELEMENT INTO THE GROUND USING SUCH A GUIDANCE PROCESS ALSTOM TRANSPORT TECHNOLOGIES (France) 2021-07-31
2354418 PROCESS FOR THE ACQUISITION OF AN IMAGE OF A NON-DERMATOGLYPHIC SKIN AREA OR HAIR AREA USING AN ACQUISITION DEVICE COMPRISING A NON-OPTICAL SENSOR L’OREAL (France) 2021-07-31
2354427 ADJUSTABLE ENDCAP FOR LANCING DEVICE ASCENSIA DIABETES CARE HOLDINGS AG (Switzerland) 2021-07-31
2354447 COMMUNICATION SYSTEM WITH WIRELESS ELECTRONIC MAIL OR MESSAGING INTEGRATED AND/OR ASSOCIATED WITH APPLICATION PROGRAM RESIDING ON REMOTE COMPUTING DEVICE XRS CORPORATION (United States of America) 2021-07-31
2354460 ATOMIZER WHEEL WITH WEAR-RESISTANT INSERTS NIRO A/S (Denmark) 2021-07-31
2354478 C10 CARBONATE SUBSTITUTED TAXANES FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC. (United States of America) 2021-07-31
2354889 CHOKE VALVE MASTERFLO VALVE INC. (Canada) 2021-07-31
2384940 HANGER AND PIN ASSEMBLY FOR DISPLAYING MERCHANDISE SPRINGS WINDOW FASHIONS LP (United States of America) 2021-07-31
2415453 SECONDARY SEAL FOR FLOATING ROOF STORAGE TANK CHICAGO BRIDGE & IRON COMPANY (United States of America) 2021-07-31
2416631 NUCLEIC ACID BINDING COMPOUNDS CONTAINING PYRAZOLO[3,4-D]PYRIMIDINE ANALOGUES OF PURIN-2,6-DIAMINE AND THEIR USES F. HOFFMANN-LA ROCHE AG (Switzerland) 2021-07-31
2416887 METHOD AND APPARATUS FOR LESION LOCALIZATION, DEFINITION AND VERIFICATION MCGILL UNIVERSITY (Canada) 2021-07-31
2416922 METHOD FOR MANUFACTURING AN AUTOMOTIVE TRIM PART RECTICEL AUTOMOBILSYSTEME GMBH (Germany) 2021-07-31
2416949 NON-HUMAN ANIMAL MODEL UNRESPONSIVE TO MYCOPLASMA DERIVED LIPOPROTEIN/LIPOPEPTIDE INDEPENDENT ADMINISTRATIVE INSTITUTION JAPAN SCIENCE AND TECHNOLOGY AGENCY (Japan) 2021-07-31
2417227 METHOD FOR PRODUCING AN ADHESIVE CLOSING ELEMENT GOTTLIEB BINDER GMBH & CO (Germany) 2021-07-31
2417717 DATA TRANSMISSION METHOD, USER EQUIPMENT AND GPRS/EDGE RADIO ACCESS NETWORK NOKIA TECHNOLOGIES OY (Finland) 2021-07-31
2417727 FENTANYL COMPOSITION FOR NASAL ADMINISTRATION NYCOMED DANMARK A/S (Denmark) 2021-07-31
2417835 BREATHABLE FILM SK GLOBAL CHEMICAL CO., LTD. (Republic of Korea) 2021-07-31
2417867 METHODS OF PREVENTING OR TREATING DISEASES AND CONDITIONS USING COMPLEX CARBOHYDRATES DERMAL RESEARCH LABORATORIES, INC. (United States of America) 2021-07-31
2417926 METHOD OF AND SYSTEM FOR IMPROVING ACCURACY IN A SPEECH RECOGNITION SYSTEM ELIZA CORPORATION (United States of America) 2021-07-31
2417983 SMOOTH-SIDED INTEGRAL COMPOSITE ENGINEERED PANELS AND METHODS FOR PRODUCING SAME LOUISIANA-PACIFIC CORPORATION (United States of America) 2021-07-31
2418030 ISOLATION OF GLUCAN PARTICLES AND USES THEREOF ABAC R&D AG (Switzerland) 2021-07-31
2423840 MIGRAINE HEADACHE TREATMENT APPARATUS NEUROPACE, INC. (United States of America) 2021-07-31
2442029 SHOE INNER SOLE CAPRICE SCHUHPRODUKTION GMBH & CO. KG (Germany) 2021-07-31

List auto-generated on July 24, 2021

Canadian Intellectual Property