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
2215712 VIDEO CODER PROVIDING IMPLICIT COEFFICIENT PREDICTION AND SCAN ADAPTATION FOR IMAGE CODING AND INTRA CODING OF VIDEO AT&T CORP. (United States of America) 2017-09-17
2215716 AEROSOL DELIVERY OF LIPOSOME-ENCAPSULATED FLUOROQUINOLONE HER MAJESTY THE QUEEN, IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF NATIONAL DEFENCE (Canada) 2017-09-17
2215888 WELLBORE PROFILING SYSTEM ALBERTA INNOVATES – ENERGY AND ENVIRONMENT SOLUTIONS (Canada) 2017-09-17
2215892 DETONATORS COMPRISING A HIGH ENERGY PYROTECHNIC ORICA EXPLOSIVES TECHNOLOGY PTY LTD. (Australia) 2017-09-17
2215894 LINK SHAPE AND CHAIN LINK ASSEMBLY METHOD J. O. BERNT & ASSOCIATES LIMITED (Canada) 2017-09-17
2216052 TRANSPORT SYSTEM FOR BIOSPECIMENS ABBOTT LABORATORIES (United States of America) 2017-09-17
2216069 BLUNTLY POINTED TONGUE MARKING TAG BEDFORD INDUSTRIES, INC. (United States of America) 2017-09-17
2216178 TANGENTIAL SEPARATOR AIR CONVEYING CORPORATION (United States of America) 2017-09-17
2216297 REPLACEABLE BRIDGE-LINK WITH BASE J. O. BERNT & ASSOCIATES LIMITED (Canada) 2017-09-17
2257295 BLOWING HEAD BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (United Kingdom) 2017-09-17
2264899 GUN BARREL AND TUBE CLEANING DEVICE MICHAELS OF OREGON CO. (United States of America) 2017-09-17
2265559 METHOD FOR PREPARING 4-METHYL-BIPHENYL DERIVATIVES SANOFI-AVENTIS (France) 2017-09-17
2265596 PROCESS AND APPARATUS FOR SOLVENT-DEASPHALTING RESIDUAL OIL CONTAINING ASPHALTENES ORMAT INDUSTRIES LTD. (Israel) 2017-09-17
2265914 CELLULASE VARIANTS NOVOZYMES A/S (Denmark) 2017-09-17
2265948 ANTENNA SYSTEM FOR AN RF DATA COMMUNICATIONS DEVICE RESEARCH IN MOTION LIMITED (Canada) 2017-09-17
2265975 OPTICAL MATERIAL HAVING PERIODICALLY VARYING REFRACTIVE INDEX AND METHOD OF MAKING TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2017-09-17
2265988 SIGNAL TRANSMISSION PROCESS DEUTSCHE TELEKOM AG (Germany) 2017-09-17
2266081 PROCESS FOR PRODUCING ECTEINASCIDIN COMPOUNDS PRESIDENT AND FELLOWS OF HARVARD COLLEGE (United States of America) 2017-09-17
2266522 DETERGENT AND ANTI-CORROSIVE ADDITIVE FOR FUELS AND FUEL COMPOSITION ELF ANTAR FRANCE (France) 2017-09-17
2266679 SATELLITE ATTITUDE SENSOR USING THERMAL IMAGING CENTRE FOR RESEARCH IN EARTH AND SPACE TECHNOLOGY (Canada) CANADIAN SPACE AGENCY (Canada) THOMSON-CSF OPTRONICS CANADA INC./THOMSON-CSF OPTRONIQUE CANADA INC. (Canada) 2017-09-17
2266952 ADJUSTABLE FILL VALVE ASSEMBLY LAVELLE INDUSTRIES, INC. (United States of America) 2017-09-17
2268084 INTEGRAL SPRING CONSUMABLES FOR PLASMA ARC TORCH USING CONTACT STARTING SYSTEM HYPERTHERM, INC. (United States of America) 2017-09-17
2268318 OPTICAL RANDOM-NUMBER GENERATOR BASED ON SINGLE-PHOTON STATISTICS AT THE OPTICAL BEAM SPLITTER DEUTSCHE TELEKOM AG (Germany) 2017-09-17
2304090 UTILITY METER PROVIDING AN INTERFACE BETWEEN A DIGITAL NETWORK AND HOME ELECTRONICS BOH TECHNOLOGY, L.L.C. (United States of America) 2017-09-17
2328825 ANTENNA SYSTEM FOR AN RF DATA COMMUNICATIONS DEVICE RESEARCH IN MOTION LIMITED (Canada) 2017-09-17
2351304 ANTENNA SYSTEM FOR AN RF DATA COMMUNICATIONS DEVICE RESEARCH IN MOTION LIMITED (Canada) 2017-09-17
2382385 BLOWING HEAD BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (United Kingdom) 2017-09-17
2581073 TRANSPORT SYSTEM FOR BIOSPECIMENS ABBOTT LABORATORIES (United States of America) 2017-09-17
2784942 UTILITY METER PROVIDING AN INTERFACE BETWEEN A DIGITAL NETWORK AND HOME ELECTRONICS BOH TECHNOLOGY, L.L.C. (United States of America) 2017-09-17
2215803 DIELECTRIC FILTER UNIT, TRANSMITTING/RECEIVING-SHARING UNIT, AND MULTIPLEXER MURATA MANUFACTURING CO., LTD. (Japan) 2017-09-18
2215809 A PLUG SCREW-FEEDER SUNDS DEFIBRATOR INDUSTRIES AB (Sweden) 2017-09-18
2265635 SKIN CARE COMPOSITIONS CONTAINING COMBINATIONS OF COMPOUNDS FOR MIMICKING THE EFFECT ON SKIN OF RETINOIC ACID UNILEVER PLC (United Kingdom) 2017-09-18
2265712 INTERMEDIATES AND PROCESS FOR PREPARING OLANZAPINE ELI LILLY AND COMPANY (United States of America) 2017-09-18
2265740 COLOR CARE COMPOSITIONS COMPRISING A DYE FIXING AGENT AND A POLYAMINE THE PROCTER & GAMBLE COMPANY (United States of America) 2017-09-18
2265748 MULTIPLE COMPANY INTEGRATED DOCUMENTS PRODUCTION MOORE WALLACE NORTH AMERICA, INC. (United States of America) 2017-09-18
2265846 A READY-TO-USE URINARY CATHETER ASSEMBLY COLOPLAST A/S (Denmark) 2017-09-18
2265910 SURFACTANT COMPLEX WITH ASSOCIATIVE POLYMERIC THICKENER S.C. JOHNSON & SON, INC. (United States of America) 2017-09-18
2265970 BREWER SYSTEMS, APPARATUS AND METHODS FOOD EQUIPMENT TECHNOLOGIES COMPANY, INC. (United States of America) 2017-09-18
2266072 PACKET FILTERING IN CONNECTION-BASED SWITCHING NETWORKS EXTREME NETWORKS, INC. (United States of America) 2017-09-18
2266409 MOUTHWASH COMPRISING CALCIUM AND PHOSPHATE IONS IN SUPERSATURATED SOLUTION JOHANSEN, ERLING (United States of America) OLSEN, THOR (United States of America) 2017-09-18
2266417 METHOD OF DETERMINING TRAFFIC DATA BY MEANS OF MOBILE RADIO TELEPHONES T-MOBILE DEUTSCHLAND GMBH (Germany) 2017-09-18
2266491 METHOD OF ENHANCING STRENGTH OF PAPER PRODUCTS AND THE RESULTING PRODUCTS INTERNATIONAL PAPER COMPANY (United States of America) 2017-09-18
2266589 GASTRIC-RETENTIVE, ORAL DRUG DOSAGE FORMS FOR THE CONTROLLED-RELEASE OF SPARINGLY SOLUBLE DRUGS AND INSOLUBLE MATTER DEPOMED, INC. (United States of America) 2017-09-18
2266693 WELLBORE MILLING SYSTEM WEATHERFORD TECHNOLOGY HOLDINGS, LLC (United States of America) 2017-09-18
2266925 SKIN CARE COMPOSITIONS CONTAINING AN AMIDE AND RETINOL OR RETINYL ESTER UNILEVER PLC (United Kingdom) 2017-09-18
2266927 SKIN CARE COMPOSITIONS CONTAINING AN AMIDE AND A RETINOID UNILEVER PLC (United Kingdom) 2017-09-18
2267859 INTERDENTAL CLEANER AND MANUFACTURING PROCESS INTERBROS GMBH (Germany) 2017-09-18
2269004 PACKAGED PHOTOCURABLE COMPOSITION MINNESOTA MINING AND MANUFACTURING COMPANY (United States of America) 2017-09-18
2270212 SYSTEM FOR DRAINING A LIQUID STORAGE TANK PETROLEO BRASILEIRO S.A. – PETROBRAS (Brazil) 2017-09-18
2270782 CASCADED PROGRESSING CAVITY PUMP SYSTEM ROBBINS & MYERS, INC. (United States of America) 2017-09-18
2301597 HOT ROLLING HIGH-STRENGTH STEEL STRUCTURAL MEMBERS CONSOLIDATED METAL PRODUCTS, INC. (United States of America) 2017-09-18
2303828 CHEWING GUM CONTAINING PHYSIOLOGICAL COOLING AGENTS WM. WRIGLEY JR. COMPANY (United States of America) 2017-09-18
2215821 A METHOD AND APPARATUS FOR OVER-THE-AIR PROGRAMMING OF TELECOMMUNICATION SERVICES AT&T WIRELESS SERVICES, INC. (United States of America) 2017-09-19
2216045 APPARATUS AND METHOD FOR PREPARATION OF LIQUID/SOLID SLURRIES TERRALOG TECHNOLOGIES U.S.A. INC. (United States of America) TERRALOG TECHNOLOGIES INC. (Canada) 2017-09-19
2216064 SELECTIVE HERBICIDES BASED ON METRIBUZIN AND SUBSTITUTED IMIDAZO[1,2-A]PYRIDIN-3-YL-SULFONYL COMPOUNDS BAYER INTELLECTUAL PROPERTY GMBH (Germany) 2017-09-19
2216268 METHOD OF TREATING A FABRIC MATERIAL AND WINDOW COVERING PRODUCT COMPRISING SUCH MATERIAL HUNTER DOUGLAS INDUSTRIES BV (Netherlands) 2017-09-19
2216279 ELECTRICAL CONNECTOR WITH SUBSTANTIALLY FLUSH MOUNTED CORD SEAL HUBBELL INCORPORATED (United States of America) 2017-09-19
2216325 OIL GEL BJ SERVICES HOLDINGS CANADA, ULC (Canada) 2017-09-19
2216665 PROCEDURE FOR SELECTING A RECORDING ON A DIGITAL AUDIOVISUAL REPRODUCTION SYSTEM AND THE SYSTEM FOR IMPLEMENTING THE PROCEDURE TOUCHTUNES MUSIC CORPORATION (United States of America) 2017-09-19
2237408 HIGH FIDELITY VIBRATORY SOURCE SEISMIC METHOD WITH SOURCE SEPARATION MOBIL OIL CORPORATION (United States of America) ATLANTIC RICHFIELD COMPANY (United States of America) 2017-09-19
2244981 PROCESS FOR INCREASING THE EFFECTIVENESS OF SLAG CONTROL CHEMICALS FOR BLACK LIQUOR RECOVERY AND OTHER COMBUSTION UNITS FUEL TECH, INC. (United States of America) 2017-09-19
2246158 REMOTE START, PASSIVE ANTI THEFT SECURITY SYSTEM DIRECTED ELECTRONICS, INC. (United States of America) 2017-09-19
2255699 NESTABLE DISPLAY CRATE FOR BOTTLE CARRIERS REHRIG PACIFIC COMPANY, INC. (United States of America) 2017-09-19
2263679 DEMODULATION OF ASYNCHRONOUSLY SAMPLED DATA BY MEANS OF DETECTION-TRANSITION SAMPLE ESTIMATION IN A SHARED MULTI-CARRIER ENVIRONMENT COMSAT CORPORATION (United States of America) 2017-09-19
2265527 PROCESS FOR THE PREPARATION OF SUBSTITUTED AROMATIC AMINO COMPOUNDS SYNGENTA PARTICIPATIONS AG (Switzerland) 2017-09-19
2265686 A CRYSTALLINE SUBSTANCE OF CEFDITOREN PIVOXYL AND THE PRODUCTION OF THE SAME MEIJI SEIKA PHARMA CO., LTD. (Japan) 2017-09-19
2265782 GAUGE FOR MEASURING LIQUID LEVELS VISTA PRECISION SOLUTIONS, INC. (United States of America) 2017-09-19
2265789 LIGHT- AND BRIGHT-COLOURED ANTIFOULING PAINTS PPG COATINGS NEDERLAND B.V. (Netherlands) 2017-09-19
2265999 SIGNAL TRANSFORMATION METHOD AND APPARATUS UNWIRED PLANET, LLC (United States of America) 2017-09-19
2266372 SYSTEM FOR DIGITAL INFORMATION TRANSMISSION, WITH ASSOCIATED METHODS AND DEVICES IAD GESELLSCHAFT FUER INFORMATIK, AUTOMATISIERUNG UND DATENVERARBEITUNG MBH (Germany) 2017-09-19
2266429 HEDGEHOG INTERACTING PROTEINS AND USES RELATED THERETO PRESIDENT AND FELLOWS OF HARVARD COLLEGE (United States of America) 2017-09-19
2266559 DYNAMIC OPTICAL SCANNING CORRECTION DEVICE THOMSON-CSF OPTRONICS CANADA INC./THOMSON-CSF OPTRONIQUE CANADA INC. (Canada) 2017-09-19
2266653 TRANSMISSION COUPLING DEVICE ESCO TRANSMISSIONS (Belgium) 2017-09-19
2267262 METHOD AND APPARATUS FOR CORRELATING A BODY WITH AN IMAGE OF THE BODY BRAINLAB AG (Germany) 2017-09-19
2267276 POLYSILOXANE-CONTAINING POLYURETHANE ELASTOMERIC COMPOSITIONS AORTECH INTERNATIONAL PLC (United Kingdom) 2017-09-19
2214586 VOLTAGE AND CURRENT BASED CONTROL AND TRIGGERING FOR ISOLATOR SURGE PROTECTOR DAIRYLAND ELECTRICAL INDUSTRIES, INC. (United States of America) 2017-09-22
2214969 HAY MAKING MACHINE KUHN S.A. (France) 2017-09-22
2215940 LASER SINTERING APPARATUS FOR PRODUCING COATINGS AND DENSE METAL PARTS NATIONAL RESEARCH COUNCIL OF CANADA (Canada) 2017-09-22
2215981 IDENTIFICATION SYSTEM FOR A LIFT INSTALLATION INVENTIO AG (Switzerland) 2017-09-22
2216025 REMOVABLE RINGS FOR ASSEMBLING AN ORNAMENTAL BASE TO A STREET POLE ABL IP HOLDING LLC (United States of America) 2017-09-22
2216027 COMPOSITE ROOFING MEMBERS HAVING IMPROVED DIMENSIONAL STABILITY AND RELATED METHODS FIRESTONE BUILDING PRODUCTS COMPANY, LLC (United States of America) 2017-09-22
2216028 ROOFING MEMBERS WITHOUT AUXILIARY FACERS AND RELATED METHODS FIRESTONE BUILDING PRODUCTS COMPANY, LLC (United States of America) 2017-09-22
2216059 GRAVITY CONCENTRATED CARBON DIOXIDE EOR PROCESS MARATHON OIL COMPANY (United States of America) 2017-09-22
2216091 CONTROL DEVICE FOR A LIFT INVENTIO AG (Switzerland) 2017-09-22
2216206 FLAME-RETARDANT COMPOSITION FOR POLYMER COMPOUNDS PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. (Italy) 2017-09-22
2237019 SYSTEM FOR FILTERING MEDICAL AND BIOLOGICAL FLUIDS BAXTER INTERNATIONAL INC. (United States of America) 2017-09-22
2266383 IMPROVED WOUND DRESSING CONVATEC TECHNOLOGIES INC. (United States of America) 2017-09-22
2266521 LIQUID PERSONAL CLEANSING COMPOSITIONS WHICH CONTAIN OILS AND SYNTHETIC SURFACTANTS THE PROCTER & GAMBLE COMPANY (United States of America) 2017-09-22
2266723 LIQUID PERSONAL CLEANSING COMPOSITIONS WHICH CONTAIN A LIPOPHILIC SKIN MOISTURIZING AGENT COMPRISED OF RELATIVELY LARGE DROPLETS THE PROCTER & GAMBLE COMPANY (United States of America) 2017-09-22
2266727 DENTAL SCALING SYSTEM DENTSPLY INTERNATIONAL INC. (United States of America) 2017-09-22
2267197 ISOLATION AND USE OF MOTONEURONOTROPHIC FACTORS GENERVON BIOPHARMACEUTICALS LLC (United States of America) 2017-09-22
2271675 SYSTEM AND METHOD FOR BROADBAND MILLIMETER WAVE DATA COMMUNICATION HARRIS BROADBAND WIRELESS ACCESS, INC. (United States of America) 2017-09-22
2303415 ANIMAL CARRIER RICHMOND, EDWARD (United States of America) 2017-09-22
2304046 CLEAN AIR ENGINES FOR TRANSPORTATION AND OTHER POWER APPLICATIONS CLEAN ENERGY SYSTEMS, INC. (United States of America) 2017-09-22
2216117 BIOMASS CONDITIONER THE ADVENT CORPORATION (United States of America) 2017-09-23
2216225 SYSTEM, METHOD AND APPARATUS FOR SOFT HANDOFF GOOGLE TECHNOLOGY HOLDINGS LLC (United States of America) 2017-09-23
2216228 A POLE SUPPORT FOR USE ON DECKED SURFACES PETRYNA, THOMAS MICHAEL (Canada) 2017-09-23
2216234 SELF-LOCKING STAKE FOR SHEET GLASS TRANSPORT SYSTEM F. BARKOW, INC. (United States of America) 2017-09-23
2216351 RUBBER MODIFIER MITSUI CHEMICALS, INC. (Japan) 2017-09-23
2216353 INTEGRATED WASTEWATER TREATMENT SYSTEM WITH INDUCED SLUDGE VELOCITY THE ADVENT CORPORATION (United States of America) 2017-09-23
2216357 DC/AC POWER CONVERTER XANTREX TECHNOLOGY INC. (United States of America) 2017-09-23
2216668 TELESCOPING JOINT FOR USE IN A CONDUIT CONNECTED TO A WELLHEAD AND ZONE ISOLATING TOOL FOR USE THEREWITH HAYNES, MICHAEL JONATHON (Canada) 2017-09-23
2238316 N-([1,2,4]TRIAZOLOAZINYL)BENZENESULFONAMIDE AND PYRIDINESULFONAMIDE COMPOUNDS AND THEIR USE AS HERBICIDES DOW AGROSCIENCES LLC (United States of America) 2017-09-23
2263166 REDUCING TOXIC EFFECTS OF CARBOPLATIN USING DITHIOETHERS BIONUMERIK PHARMACEUTICALS, INC. (United States of America) 2017-09-23
2263204 PROCESS FOR PRODUCING MERCAPTOALKANESULFONATES AND PHOSPHONATES AND DERIVATIVES THEREOF BIONUMERIK PHARMACEUTICALS, INC. (United States of America) 2017-09-23
2263319 QUINAZOLINE DERIVATIVES AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM ASTRAZENECA UK LIMITED (United Kingdom) 2017-09-23
2266454 DETERMINATION OF RESPIRATORY PHASE RESMED LIMITED (Australia) 2017-09-23
2266478 POLYMERIZABLE BIODEGRADABLE POLYMERS INCLUDING CARBONATE OR DIOXANONE LINKAGES GENZYME CORPORATION (United States of America) 2017-09-23
2266551 DISPERSANT VISCOSITY INDEX IMPROVERS SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. (Netherlands) 2017-09-23
2266667 LOW DENSITY, LIGHT WEIGHT INTUMESCENT COATING AKZO NOBEL NV (Netherlands) 2017-09-23
2266705 FASTENER MEMBER WITH ANTI-CROSS-THREADING POINT AND METHOD OF ASSEMBLY ACUMENT INTELLECTUAL PROPERTIES, LLC (United States of America) 2017-09-23
2266907 BIOPROSTHETIC HEART VALVE AND IMPLANTATION DEVICE EDWARDS LIFESCIENCES CORPORATION (United States of America) 2017-09-23
2266951 METHOD AND APPARATUS FOR ADJACENT SERVICE AREA HANDOFF IN COMMUNICATION SYSTEMS QUALCOMM INCORPORATED (United States of America) 2017-09-23
2266977 A SYSTEM FOR DISTRIBUTED TASK EXECUTION CORPORATION FOR NATIONAL RESEARCH INITIATIVES (United States of America) 2017-09-23
2267596 DEVICE AND METHOD IN A CELLULAR MOBILE TELEPHONE SYSTEM TELEFONAKTIEBOLAGET LM ERICSSON (Sweden) 2017-09-23
2272748 PROCESS CONTROL SYSTEM AND METHOD FOR AUTOMATED CONTINUOUS PRODUCTION OF CHEWING GUM WM. WRIGLEY JR. COMPANY (United States of America) 2017-09-23
2298547 METHODS AND APPARATUS FOR DETERMINING INSTANTANEOUS ELASTIC RECOIL AND ASSISTANCE PRESSURE DURING VENTILATORY SUPPORT RESMED LIMITED (Australia) 2017-09-23
2298553 METHOD FOR PROVIDING VENTILATORY ASSISTANCE IN A SPONTANEOUSLY BREATHING SUBJECT RESMED LIMITED (Australia) 2017-09-23
2396229 COMPLIANT POLYMERIC MATERIALS FORMED FROM MACROMERS GENZYME CORPORATION (United States of America) 2017-09-23
2478809 DETERMINING INSTANTANEOUS ELASTIC RECOIL AND ASSISTANCE PRESSURE DURING VENTIALIATORY SUPPORT RESMED LIMITED (Australia) 2017-09-23

List auto-generated on September 16, 2017

Canadian Intellectual Property