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
2168993 HYDROLYSIS REACTOR FOR REMOVAL OF UREA, AMMONIA AND CARBON DIOXIDE FROM A LIQUID PHASE COMPRISING UREA IN AQUEOUS SOLUTION UREA CASALE S.A. (Switzerland) 2016-02-07
2168994 METHOD AND APPARATUS FOR INTERLEAVING PULSES IN A LIQUID RECORDER SAMSUNG ELECTRONICS CO., LTD. (Republic of Korea) 2016-02-07
2169004 BALLISTIC GRILL FOR SPECIAL PURPOSE VEHICLES FRIED. KRUPP AG HOESCH-KRUPP (Germany) 2016-02-07
2169008 SEED COATING APPARATUS CNH CANADA, LTD./CNH CANADA, LTEE (Canada) 2016-02-07
2169017 DRAGLINE WITH HIGH HEADROOM BETWEEN UPPER AND LOWER STRUCTURES HARNISCHFEGER TECHNOLOGIES, INC. (United States of America) 2016-02-07
2169019 IMPROVEMENTS IN PLATINUM COMPLEXES ANORMED INC. (Canada) THE INSTITUTE OF CANCER RESEARCH; ROYAL CANCER HOSPITAL (United Kingdom) 2016-02-07
2169022 TWEEZER-LIKE HEATER DELAWARE CAPITAL FORMATION, INC. (United States of America) 2016-02-07
2169023 CAP FOR CHAIN LINK FENCE RESINES SEFACO INC. (Canada) 2016-02-07
2169039 METHOD FOR FILLING SHELL BODIES WITH SUBPROJECTILES AND DEVICE FOR EXECUTING THIS METHOD OERLIKON-CONTRAVES-PYROTEC AG (Switzerland) 2016-02-07
2169044 THERMOSTAT EMERSON ELECTRIC CO. (United States of America) 2016-02-07
2169049 COMPOSITION AND METHOD FOR CONTROLLING BROWN STAIN IN WOOD ISK AMERICAS INCORPORATED (United States of America) 2016-02-07
2181356 ISOLATED FLOOR FOR MATERIAL HANDLING VEHICLE CROWN EQUIPMENT CORPORATION (United States of America) 2016-02-07
2186268 COMPUTER PHYSICAL SECURITY DEVICE ACCO BRANDS USA LLC (United States of America) 2016-02-07
2187010 METHOD AND APPARTUS FOR REMOTE CONTROL OF WELLBORE END DEVICES BAKER HUGHES INCORPORATED (United States of America) 2016-02-07
2187204 PROCESS FOR PREPARING OLEFIN POLYMER MITSUI CHEMICALS, INC. (Japan) 2016-02-07
2210146 FASTENER VERIFICATION SYSTEM THE BOEING COMPANY (United States of America) 2016-02-07
2210528 IMPROVED MAGNETOHYDRODYNAMIC ELECTRIC GENERATOR HAYES, JAMES C. (Canada) 2016-02-07
2212411 METHOD FOR IMPROVED WATER WELL PRODUCTION FRAZIER, WILLIAM C. (United States of America) 2016-02-07
2212519 PROCESS FOR THE COATING OF OBJECTS WITH HYALURONIC ACID, DERIVATIVES THEREOF, AND SEMISYNTHETIC POLYMERS FIDIA ADVANCED BIOPOLYMERS, S.R.L. (Italy) 2016-02-07
2213314 AQUEOUS ALKYL DIKETENE DISPERSIONS AND THE USE THEREOF AS GLUE FOR PAPER KEMIRA OYJ (Finland) 2016-02-07
2216709 DEVICE AND METHOD FOR SEPARATING FOREIGN OBJECTS FROM A MASS OF COINS SCAN COIN AB (Sweden) 2016-02-07
2497785 COMPUTER PHYSICAL SECURITY DEVICE ACCO BRANDS USA LLC (United States of America) 2016-02-07
2169102 CALLING PARTY PAID SERVICE USING PERSONAL TELEPHONE NUMBER AT&T CORP. (United States of America) 2016-02-08
2169104 IMPROVED SOLID PHASE MICROEXTRACTION OF TRACE AMOUNTS OF ORGANIC ANALYTES AVANTOR PERFORMANCE MATERIALS, INC. (United States of America) 2016-02-08
2169106 REPLACEABLE BLADE SKATE QUIKBLADE INC. (Canada) 2016-02-08
2169107 PRESSURE VESSEL SAF-T-PAK INC. (Canada) 2016-02-08
2169114 CARBONACEOUS ELECTRODE MATERIAL FOR BATTERY AND PROCESS FOR PRODUCTION THEREOF KUREHA CORPORATION (Japan) 2016-02-08
2169133 FIREFIGHTER GARMENT WITH COMBINATION FACECLOTH AND MOISTURE BARRIER LION GROUP, INC. (United States of America) 2016-02-08
2169139 MOTION PICTURE RETRIEVAL SYSTEM NEC PERSONAL COMPUTERS, LTD. (Japan) 2016-02-08
2169140 GOLD RECOVERY FROM REFRACTORY CARBONACEOUS ORES BY PRESSURE OXIDATION AND THIOSULFATE LEACHING BARRICK GOLD CORPORATION (Canada) 2016-02-08
2169142 KEY CUTTING MACHINE WITH KEY TRACING AND ELECTRONIC CODE CUTTING DUPLICATION MODES THE HILLMAN GROUP, INC. (United States of America) 2016-02-08
2169153 QUICK CONNECTOR WITH INTEGRAL RELEASE MECHANISM BUNDY CORPORATION (United States of America) 2016-02-08
2211894 METALLIC GLASS ALLOYS OF ZR, TI, CU AND NI CALIFORNIA INSTITUTE OF TECHNOLOGY (United States of America) 2016-02-08
2212326 O-CARBAMOYL-(D)-PHENYLALANILOL COMPOUNDS AND PROCESS FOR PREPARING THE SAME SK BIOPHARMACEUTICALS CO., LTD. (Republic of Korea) 2016-02-08
2212408 ELECTROSTATIC FILTER AND SUPPLY AIR TERMINAL PUROCELL S.A. (Switzerland) 2016-02-08
2212456 BACILLUS PROTEASES NOVOZYMES A/S (Denmark) 2016-02-08
2212457 ELECTRONIC NEGOTIABLE DOCUMENTS CRYPTOMATHIC A/S (Denmark) 2016-02-08
2212459 ACCOMMODATING INTRAOCULAR LENS HAVING T-SHAPED HAPTICS THE NICE TRUST, C/O FEDERAL TRUST COMPANY LIMITED (United Kingdom) 2016-02-08
2212560 EXPRESSION OF SUCROSE PHOSPHORYLASE IN PLANTS MONSANTO TECHNOLOGY LLC (United States of America) 2016-02-08
2212577 BACILLUS PROTEASES NOVOZYMES A/S (Denmark) 2016-02-08
2213101 HEMODIALYSIS ACCESS DEVICE ARROW INTERNATIONAL, INC. (United States of America) 2016-02-08
2214100 SUSTAINED RELEASE FORMULATION CONTAINING THREE DIFFERENT TYPES OF POLYMERS TEVA WOMEN’S HEALTH, INC. (United States of America) 2016-02-08
2215305 ELECTRICAL AND STRUCTURAL INTERCONNECTOR CAREFUSION 303, INC. (United States of America) 2016-02-08
2215368 MODULAR PATIENT CARE SYSTEM CAREFUSION 303, INC. (United States of America) 2016-02-08
2215526 DEVICE/METHOD FOR INDICATING THE DISPERSING OF A MATERIAL WATERBURY COMPANIES, INC. (United States of America) 2016-02-08
2216124 APPARATUS FOR MANUFACTURING OF COMPOSITE CUSHIONING PRODUCT GEAMI, LTD. (United States of America) 2016-02-08
2487985 FIREFIGHTER GARMENT WITH COMBINATION FACECLOTH AND MOISTURE BARRIER LION GROUP, INC. (United States of America) 2016-02-08
2605569 ELECTRONIC NEGOTIABLE DOCUMENTS CRYPTOMATHIC A/S (Denmark) 2016-02-08
1340381 RECOMBINANT FUSION PROTEINS CELLTECH THERAPEUTICS LIMITED (United Kingdom) 2016-02-09
1340384 METHODE D’UTILISATION DE VECTEURS D’EXPRESSION EUCARYOTES COMPRENANT UN AMPLIFICATEUR DU VIRUS BK ELI LILLY AND COMPANY (United States of America) 2016-02-09
2169202 COMPOSITIONS FOR THE PRESERVATION OF TIMBER PRODUCTS UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION (United States of America) 2016-02-09
2169218 FLOATING HEAD ASSEMBLY FOR A PULTRUSION PROCESS ROKICKI, STANLEY (Canada) 2016-02-09
2169238 MANHOLE HEAD ASSEMBLY PRESCOTT, ALAIN (Canada) 2016-02-09
2186037 NEW PHARMACEUTICAL FORMULATION AND PROCESS ASTRA AKTIEBOLAG (Sweden) 2016-02-09
2186503 ELECTROGENERATED CHEMILUMINESCENCE LABELS FOR ANALYSIS AND/OR REFERENCING BIOVERIS CORPORATION (United States of America) 2016-02-09
2187422 DOWNHOLE PRODUCTION WELL CONTROL SYSTEM AND METHOD BAKER HUGHES INCORPORATED (United States of America) 2016-02-09
2187424 METHOD AND APPARATUS FOR THE REMOTE CONTROL AND MONITORING OF PRODUCTION WELLS BAKER HUGHES INCORPORATED (United States of America) 2016-02-09
2187432 PRODUCTION WELLS HAVING PERMANENT DOWNHOLE FORMATION EVALUATION SENSORS BAKER HUGHES INCORPORATED (United States of America) 2016-02-09
2187434 COMPUTER CONTROLLED DOWNHOLE TOOLS FOR PRODUCTION WELL CONTROL BAKER HUGHES INC. (United States of America) 2016-02-09
2209658 HEAVY AROMATICS PROCESSING MOBIL OIL CORPORATION (United States of America) 2016-02-09
2210956 METHOD FOR PREPARING A RECOMBINANT ADENOVIRUS GENOME AVENTIS PHARMA S.A. (France) 2016-02-09
2212172 POLYPODIUM EXTRACT AS PHOTOPROTECTANT INDUSTRIAL FARMACEUTICA CANTABRIA, S.A. (Spain) 2016-02-09
2212358 A METHOD FOR STANDARDIZING A SPECTROMETER FOSS ELECTRIC A/S (Denmark) 2016-02-09
2212700 METHOD AND PLANT FOR MIXING AND ANALYZING UNHOMOGENEOUS FLOWABLE FOODSTUFF, FODDER OR PHARMACEUTICAL MATERIAL CFS SLAGELSE A/S (Denmark) 2016-02-09
2212723 ROADWORKING MACHINE WIRTGEN GMBH (Germany) 2016-02-09
2212797 TREATING AGENT FOR LIQUID CRYSTAL ALIGNMENT NISSAN CHEMICAL INDUSTRIES, LTD. (Japan) 2016-02-09
2503399 COMPUTER CONTROLLED DOWNHOLE TOOLS FOR PRODUCTION WELL CONTROL BAKER HUGHES INC. (United States of America) 2016-02-09
2169307 NON-CONTACT CHARACTERIZATION AND INSPECTION OF MATERIALS USING WIDEBAND AIR COUPLED ULTRASOUND MICROACOUSTIC INSTRUMENTS INC. (Canada) 2016-02-12
2169308 SUBSTRATE-BASED ARRAY CONNECTOR AT&T CORP. (United States of America) 2016-02-12
2169312 A PROCESS FOR PRODUCING MOLYBDENUM OXYSULFIDE DITHIOCARBAMATE ADEKA CORPORATION (Japan) 2016-02-12
2169315 PRIMERS AND PROBES FOR THE DETECTION OF HIV F. HOFFMANN-LA ROCHE AG (Switzerland) 2016-02-12
2169319 CORROSION PROTECTION IN CONCRETE SANITARY SEWERS PREMIER MAGNESIA, LLC (United States of America) 2016-02-12
2169322 PUMPING SYSTEM TELEDYNE INSTRUMENTS, INC. (United States of America) 2016-02-12
2169345 PROCESS FOR ELIMINATING ORGANIC POLLUTANT RESIDUES IN SYNTHESIS GAS OBTAINED DURING REFUSE GASIFICATION THERMOSELECT AKTIENGESELLSCHAFT (Liechtenstein) 2016-02-12
2211039 MEDICINAL COMBINATION USEFUL FOR IN VIVO EXOGENIC TRANSFECTION AND EXPRESSION RHONE-POULENC RORER S.A. (France) INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (France) 2016-02-12
2211924 METHOD FOR PURIFYING EXHAUST FROM WOOD MANUFACTURING PROCESSES ENGELHARD CORPORATION (United States of America) 2016-02-12
2212334 FRAGMENT CLAMP/BUTTRESS MEDOFF, ROBERT J. (United States of America) 2016-02-12
2212702 MUCOSAL VASCULAR ADDRESSINS AND USES THEREOF MILLENNIUM PHARMACEUTICALS, INC. (United States of America) 2016-02-12
2212836 SUBSTITUTED ISOXAZOLES FOR THE TREATMENT OF INFLAMMATION G.D. SEARLE & CO. (United States of America) 2016-02-12
2213102 MODIFIERS FOR ALDOXIME EXTRACTANT OF METAL VALUES COGNIS IP MANAGEMENT GMBH (Germany) 2016-02-12
2213208 LOCKING DEVICE FOR DOORS STENDALS ELEKTRISKA AB (Sweden) 2016-02-12
2213610 INGAP PROTEIN INVOLVED IN PANCREATIC ISLET NEOGENESIS EASTERN VIRGINIA MEDICAL SCHOOL OF THE MEDICAL COLLEGE OF HAMPTON ROADS (United States of America) MCGILL UNIVERSITY (Canada) 2016-02-12
2213693 AMORPHOUS PIRETANIDE, PIRETANIDE POLYMORPHS, PROCESS FOR THEIR PREPARATION AND THEIR USE HOECHST PHARMACEUTICALS & CHEMICALS K.K. (Japan) 2016-02-12
2238339 CATALYST FOR TREATING WASTE PLASTICS PLASTIC ADVANCED RECYCLING CORPORATION (United States of America) 2016-02-12
2238341 PROCESS AND APPARATUS FOR TREATMENT OF WASTE PLASTIC HYDROCARBONS PLASTIC ADVANCED RECYCLING CORPORATION (United States of America) 2016-02-12
2614979 PIRETANIDE POLYMORPH, PROCESS FOR ITS PREPARATION AND ITS USE HOECHST PHARMACEUTICALS & CHEMICALS K.K. (Japan) 2016-02-12
2169382 METHOD AND APPARATUS FOR USE IN INFLATING PACKER IN WELL BORE WEATHERFORD TECHNOLOGY HOLDINGS, LLC (United States of America) 2016-02-13
2169395 IMPLEMENT AND HITCH ALAMO GROUP INC. (United States of America) 2016-02-13
2169397 SCREEN MOUNTING APPARATUS APPLIED ELECTRONICS LIMITED (Canada) 2016-02-13
2169401 COMPONENTS AND CATALYSTS FOR THE POLYMERIZATION OF OLEFINS MONTELL NORTH AMERICA INC. (United States of America) 2016-02-13
2169405 ROOFING WASHER MAGAZINE FOR BARBED ROOFING WASHERS OMG ROOFING, INC. (United States of America) 2016-02-13
2169411 SLURRY DRYER SCOTT EQUIPMENT COMPANY (United States of America) 2016-02-13
2169422 METHOD AND APPARATUS FOR REDUCING NOISE IN SPEECH SIGNAL SONY CORPORATION (Japan) 2016-02-13
2169424 METHOD AND APPARATUS FOR NOISE REDUCTION BY FILTERING BASED ON A MAXIMUM SIGNAL-TO-NOISE RATIO AND AN ESTIMATED NOISE LEVEL SONY CORPORATION (Japan) 2016-02-13
2169431 EQUIPMENT FOR RECOGNISING WHEN SYNTHETIC FIBRE CABLES ARE RIPE FOR BEING DISCARDED INVENTIO AG (Switzerland) 2016-02-13
2169432 SYNTHETIC RESIN CORRUGATED PIPE HAVING A CONCAVE-CONVEX SURFACE KANAO, SHIGEKI (Japan) 2016-02-13
2169435 NEUROPHYSIOLOGICALLY DESIGNED KNEE ORTHOSIS WITH THREE DIMENSIONAL JOINT 2330-2029 QUEBEC INC. (Canada) 2016-02-13
2187805 DEVICE FOR AUTOMATICALLY COMPENSATING THE LENGTH OF FLEXIBLE CABLE CONTROL MEANS, ESPECIALLY CABLE ADJUSTERS KUSTER & CO. GMBH (Germany) 2016-02-13
2211430 METHOD FOR PRODUCING A STEEL SHEET OR STRIP FOR MAKING A CAN, AND RESULTING STEEL SHEET OR STRIP SOLLAC (France) 2016-02-13
2211679 FEEDER SAXLUND INTERNATIONAL HOLDING AB (Sweden) 2016-02-13
2212033 A METHOD FOR PREPARING OPEN-CELLED GROWING MEDIA AND GROWING MEDIA PREFORMA WESTLAND B.V. (Netherlands) 2016-02-13
2212574 SYSTEMS AND METHODS FOR SECURE TRANSACTION MANAGEMENT AND ELECTRONIC RIGHTS PROTECTION INTERTRUST TECHNOLOGIES CORPORATION (United States of America) 2016-02-13
2212799 RELIABLE ATM MICROWAVE LINK AND NETWORK WI-LAN INC. (Canada) 2016-02-13
2212854 PAPERBEAD FOR PROTECTING DRYWALL CORNERS BAILEY METAL PRODUCTS LIMITED (Canada) 2016-02-13
2213209 METHOD FOR PRODUCING THICK CERAMIC FILMS BY A SOL GEL COATING PROCESS DATEC COATING CORPORATION (Canada) 2016-02-13
2213451 GENERATION OF HUMAN CYTOTOXIC T-CELLS SPECIFIC FOR CARCINOMA SELF-ASSOCIATED ANTIGENS AND USES THEREOF THE GOVERNMENT OF THE UNITED STATES OF AMERICA (United States of America) 2016-02-13
2683230 SYSTEMS AND METHODS FOR SECURE TRANSACTION MANAGEMENT AND ELECTRONIC RIGHTS PROTECTION INTERTRUST TECHNOLOGIES CORPORATION (United States of America) 2016-02-13

List auto-generated on February 6, 2016

Canadian Intellectual Property