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
2143776 COMMUNICATION NETWORK WITH INCOMING CALLS DIRECTED THROUGH MOVING CELLS AND METHOD FOR OPERATING SAME CDC PROPRIETE INTELLECTUELLE (France) 2015-03-02
2143803 METHODS AND APPARATUS FOR MAKING MULTI-LAYER ABSORBENT PRODUCTS MCNEIL-PPC, INC. (United States of America) 2015-03-02
2143805 PROCESS FOR THE PREPARATION AND PURIFICATION OF IODINATED CONTRAST AGENTS BRACCO IMAGING S.P.A. (Italy) 2015-03-02
2143806 DEVICE FOR SQUEEZING THE CONTENTS OF FLEXIBLE TUBES TAL, ZEEV (Israel) 2015-03-02
2143821 SWITCHING POWER SUPPLY ADAPTED FOR REDUCED VOLTAGE COMMUNICATION POWER SUPPLY SYSTEMES HOLDINGS (THE NETHERLANDS) B.V. (Netherlands) 2015-03-02
2143915 AN IMPROVED COMPOSITE WATERLANCE AND CAVITY CONNECTION BABCOCK AND WILCOX COMPANY (THE) (United States of America) 2015-03-02
2161670 HIGH PERFORMANCE MOTORIZED WATER SKI MONTGOMERY, ROBERT E. (United States of America) 2015-03-02
2183734 COPPER CONTAINING ABSORBENTS FOR ABSORBING SULPHUR COMPOUNDS JOHNSON MATTHEY PLC (United Kingdom) 2015-03-02
2184383 BLOCK COPOLYMER ELASTOMER CATHETER BALLOONS SCIMED LIFE SYSTEMS, INC. (United States of America) 2015-03-02
2184473 FLUID BEARING WITH COMPLIANT LINKAGE FOR CENTERING RECIPROCATING BODIES SUNPOWER INC. (United States of America) 2015-03-02
2186137 TOOTH ARRANGEMENT COMPONENTA WEAR PARTS AB (Sweden) 2015-03-02
2143877 SNOW SHOVEL ASSEMBLY SUNCAST CORPORATION (United States of America) 2015-03-03
2143878 STACKABLE HOSE REEL CART SUNCAST CORPORATION (United States of America) 2015-03-03
2143883 MODIFIED PMDI FOR FASTER PRESS TIMES OR LOWER PRESS TEMPERATURES AND REDUCTION OF MDI FROM HOT PRESSES BAYER CORPORATION (United States of America) 2015-03-03
2143884 POOL OR WATER TANK, SUCH AS A SWIMMING POOL PROVIDED WITH MEANS FOR GENERATING WAVES BASTENHOF, DIRK (Netherlands) 2015-03-03
2143889 CONDUCTIVE POLYMERIC COMPOSITE PARTICLES AND PROCESSES THEREOF XEROX CORPORATION (United States of America) 2015-03-03
2143894 ADHERENT AGENT APPLICATOR BERGER, DAVID B. (Canada) 2015-03-03
2143898 A PROCESS FOR REACTIVATING PURIFIED MEMBRANE PROTEINS BY FREEZING THEM SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBH (Germany) 2015-03-03
2143905 CAMERA LENS CONTROL SYSTEM AND METHOD PARKERVISION, INC. (United States of America) 2015-03-03
2143916 FORCED AIR DEFROST TUNNEL KRAFT FOODS GROUP BRANDS LLC (United States of America) 2015-03-03
2160915 METHOD AND SYSTEM FOR PHOTOCATALYTIC DECONTAMINATION PURIFICS ENVIRONMENTAL TECHNOLOGIES, INC. (Canada) 2015-03-03
2161338 LARGE PORE SYNTHETIC POLYMER MEMBRANES PALL CORPORATION (United States of America) 2015-03-03
2182866 AMINO AND FLUORO GROUP CONTAINING SILOXANES, EMULSIONS AND SURFACE COATINGS THEREOF E. I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2015-03-03
2182869 HYDROLYZED SILANE EMULSIONS AND THEIR USE AS SURFACE COATINGS E. I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2015-03-03
2184386 INTERFERENCE ELIMINATING AGENT FOR APPLICATION IN IMMUNOASSAYS ROCHE DIAGNOSTICS GMBH (Germany) 2015-03-03
2184471 COATING COMPOSITION, PROCESS FOR FORMING CURED FILM AND COATED ARTICLE NIPPON PAINT CO., LTD. (Japan) 2015-03-03
2184579 MEDICATION DELIVERY DEVICE WITH A MICROPROCESSOR AND CHARACTERISTIC MONITOR BECTON, DICKINSON AND COMPANY (United States of America) 2015-03-03
2184721 A METHOD AND PLANT FOR DRYING WOOD COLDBAY AB (Sweden) 2015-03-03
2184829 SEALED RELAY DEVICE TYCO ELECTRONICS CORPORATION (United States of America) 2015-03-03
2185588 NICKEL-CONTAINING HYDROGENATION CATALYSTS BASF AKTIENGESELLSCHAFT (Germany) 2015-03-04
2143983 DRIVE GEAR FOR A GROUP OF CYLINDERS AND METHOD IN THE DRIVE OF CYLINDERS VALMET POWER TRANSMISSION INC. (Finland) 2015-03-06
2143985 CATIONIC AND ANIONIC POLYELECTROLYTES FOR ENHANCING THE FREENESS OF PAPER PULP NALCO CHEMICAL COMPANY (United States of America) 2015-03-06
2143988 EXCHANGEABLE CUTTING INSERT ISCAR LTD. (Israel) 2015-03-06
2144001 APPARATUS AND METHOD FOR FORMING CORELESS PAPER ROLL PRODUCTS GEORGIA-PACIFIC CONSUMER PRODUCTS LP (United States of America) 2015-03-06
2144004 TECHNIQUE FOR REDUCING THE MOLECULAR WEIGHT AND IMPROVING THE PROCESSABILITY OF HIGH CIS-1,4-POLYBUTADIENE THE GOODYEAR TIRE & RUBBER COMPANY (United States of America) 2015-03-06
2144015 RECORDING PAPER, INK-JET RECORDING PROCESS AND RECORDING SYSTEM MAKING USE OF THE RECORDING PAPER CANON KABUSHIKI KAISHA (Japan) 2015-03-06
2144025 PROCESS FOR DEINKING PULP AND DEVICE FOR APPLYING SAID PROCESS E & M LAMORT (France) 2015-03-06
2162256 METHOD AND SYSTEM FOR CHANNEL ALLOCATION USING POWER CONTROL AND MOBILE-ASSISTED HANDOVER MEASUREMENTS ERICSSON INC. (United States of America) 2015-03-06
2184243 LIQUID DISPENSER WITH REFILL PACKING ITSAC N.V. TRADING AS INNOVATIVE PACKAGING (Netherlands Antilles) 2015-03-06
2184367 OPTICAL SOURCES HAVING A STRONGLY SCATTERING GAIN MEDIUM PROVIDING LASER-LIKE ACTION BROWN UNIVERSITY RESEARCH FOUNDATION (United States of America) 2015-03-06
2184726 EXPANDABLE TELECOMMUNICATIONS SYSTEM EXCEL SWITCHING CORPORATION (United States of America) 2015-03-06
2184812 METHOD AND APPARATUS FOR FORMING MINIATURE SIZE CONFECTIONERY PRODUCTS WM. WRIGLEY JR. COMPANY (United States of America) 2015-03-06
2184916 USE OF FIBROBLAST GROWTH FACTORS TO STIMULATE BONE GROWTH UNIVERSITY OF TEXAS (United States of America) MUNDY, GREGORY R. (United States of America) AVENTIS PHARMA S.A. (France) 2015-03-06
2187628 NUTRITIONAL PRODUCT FOR TREATMENT OF ULCERATIVE COLITIS AND USE THEREOF DEMICHELE, STEPHEN JOSEPH (Country Unknown) GARLEB, KEITH ALLEN (Country Unknown) MCEWEN, JOHN WILLIAM (Country Unknown) FULLER, MARTHA KAY (Country Unknown) 2015-03-06
2213445 TIDAL GENERATOR TIDAL ELECTRIC, INC. (United States of America) 2015-03-06
2270148 RECORDING PAPER, INK-JET RECORDING PROCESS AND RECORDING SYSTEM MAKING USE OF THE RECORDING PAPER HIROSE, MIFUNE (Country Unknown) SUZUKI, EIICHI (Country Unknown) SAKAKI, MAMORU (Country Unknown) KATAYAMA, MASATO (Country Unknown) 2015-03-06
2386758 EXPANDABLE TELECOMMUNICATIONS SYSTEM EXCEL SWITCHING CORPORATION (United States of America) 2015-03-06
2144101 A POURABLE WATER DISPERSIBLE THICKENING COMPOSITION FOR AQUEOUS SYSTEMS RHEOX INTERNATIONAL INC. (United States of America) 2015-03-07
2144105 METHOD AND SYSTEM FOR DETECTING INTRUSION INTO AND MISUSE OF A DATA PROCESSING SYSTEM MCAFEE, INC. (United States of America) 2015-03-07
2144107 LITHIUM SECONDARY BATTERY FDK CORPORATION (Japan) 2015-03-07
2144116 O-RING SEAL FOR ROCK BIT BEARINGS SMITH INTERNATIONAL, INC. (United States of America) 2015-03-07
2144120 AUTOMATIC ADJUSTMENT OF VENEER LATHE NOSE BAR HEIGHT RELATIVE TO KNIFE DURING PEELING U.S. NATURAL RESOURCES, INC. (United States of America) 2015-03-07
2144122 FLIGHT SIMULATOR EMPLOYING AN ACTUAL AIRCRAFT WATSON, BRUCE L. (Canada) 2015-03-07
2144123 PULVERIZING AND GRINDING HAMMER HOSOKAWA MICRON INTERNATIONAL, INC. (United States of America) 2015-03-07
2144124 PROCESS AND DEVICE FOR AUTHENTIFYING A DATA MEDIUM USED TO AUTHORIZE A TRANSACTION OR TO AUTHORIZE ACCESS TO A SERVICE OR A LOCATION, AND RELATED MEDIUM CP8 TECHNOLOGIES (France) 2015-03-07
2144133 MONOMERS DERIVED FROM PERHALOGENATED SULTONES AND POLYMERS PRODUCED FROM SAID MONOMERS CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France) HYDRO-QUEBEC (Canada) 2015-03-07
2182872 PROCESS FOR INCREASING THE MOLECULAR WEIGHT OF POLYAMIDES AND OTHER CONDENSATION POLYMERS INVISTA TECHNOLOGIES S.A.R.L. (Switzerland) 2015-03-07
2184379 CANISTER WITH POROUS PLASTIC ENDS MULTISORB TECHNOLOGIES, INC. (United States of America) 2015-03-07
2184889 CHEMICAL CASTRATION FAHIM, MOSTAFA S. (United States of America) 2015-03-07
2184982 ELECTROSPRAY AND ATMOSPHERIC PRESSURE CHEMICAL IONIZATION SOURCES PERKINELMER HEALTH SCIENCES, INC. (United States of America) 2015-03-07
2185015 NOVEL SILYL COMPOUNDS AND THEIR USE TAKEDA GMBH (Germany) 2015-03-07
2185018 REFINING OIL COMPOSITIONS NORSK HYDRO A.S (Norway) PRONOVA BIOPHARMA NORGE AS (Norway) 2015-03-07
2185029 A BOREHOLE MEASUREMENT SYSTEM EMPLOYING ELECTROMAGNETIC WAVE PROPAGATION BAKER HUGHES INCORPORATED (United States of America) 2015-03-07
2185152 CASED AMMUNITION BOFORS DEFENCE AB (Sweden) 2015-03-07
2185565 USE OF IL-12 AND IL-12 ANTAGONISTS IN THE TREATMENT OF AUTOIMMUNE DISEASES GENETICS INSTITUTE, LLC (United States of America) 2015-03-07
2144201 ELECTRONIC CONTROL SYSTEM FOR A HEATING APPARATUS AMETEK INC. (United States of America) 2015-03-08
2144205 WATTHOUR METER MOUNTING APPARATUS WITH IMPROVED ELECTRICAL CONNECTIONS EKSTROM INDUSTRIES, INC. (United States of America) 2015-03-08
2144210 WATTHOUR METER MOUNTING APPARATUS WITH SAFETY SHIELD EKSTROM INDUSTRIES, INC. (United States of America) 2015-03-08
2144217 ELECTROCHEMICAL REDUCTION OF METAL SALTS AS A METHOD OF PREPARING HIGHLY DISPERSED METAL COLLOIDS AND SUBSTRATE FIXED METAL CLUSTERS BY ELECTROCHEMICAL REDUCTION OF METAL SALTS UMICORE AG & CO KG (Germany) 2015-03-08
2144219 METHOD AND DEVICE FOR CONTINUOUS DETERMINATION OF THE SYLVITE SATURATION OF HOT SOLUTIONS FOR MONITORING AND CONTROL OF THE HOT DISSOLVING OF A CRUDE POTASSIUM SALT K+S KALI GMBH (Germany) 2015-03-08
2144220 RETRACTABLE BLIND OR SHADE ASSEMBLY HUNTER DOUGLAS INDUSTRIES B.V. (Netherlands) 2015-03-08
2144228 SATURATED FLUOROALKYLAMINES AND THEIR DERIVATIVES, AND MIXTURES THEREOF CLARIANT PRODUKTE (DEUTSCHLAND) GMBH (Germany) 2015-03-08
2144234 PROCESS FOR THE TREATMENT OF PORK MANURE AND PRODUCT THUS OBTAINED MARCHESE, EDOARDO (France) SC KHEPER BIOTECHNOLOGIES (France) 2015-03-08
2144239 JOINT CONSTRUCTION FOR SUSPENDED CEILING SYSTEM ROGERS, DAVID JAMES (Canada) 2015-03-08
2162276 DIGITAL PIXEL-ACCURATE INTENSITY PROCESSING METHOD FOR IMAGE INFORMATION ENHANCEMENT THE UNIVERSITY OF CONNECTICUT (United States of America) 2015-03-08
2162286 METHOD OF DETERMINING THE AMOUNT OF CHOLESTEROL IN A HIGH-DENSITY LIPOPROTEIN KYOWA MEDEX CO., LTD. (Japan) 2015-03-08
2162289 METHOD OF DETERMINING THE AMOUNT OF CHOLESTEROL IN A HIGH-DENSITY LIPOPROTEIN KYOWA MEDEX CO., LTD. (Japan) 2015-03-08
2182506 4-(ALPHA-METHOXY)METHYLENE-2H-CHROMENE-3(4H)-ONE AND ITS USE IN AGRICULTURE E.I. DU PONT DE NEMOURS AND COMPANY (United States of America) 2015-03-08
2184807 METHOD AND APPARATUS FOR CURRENCY DISCRIMINATION CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2184983 AN INTRAVASCULAR TREATMENT SYSTEM AND PERCUTANEOUS RELEASE MECHANISM THEREFOR COOK INCORPORATED (United States of America) 2015-03-08
2184998 GAS CONDITIONER APPARATUS AND METHOD AMERICAN HIGH TEMP., INC. (United States of America) 2015-03-08
2185114 RECOMBINANT HUMANIZED ANTI-LEWIS Y ANTIBODIES SCOTGEN BIOPHARMACEUTICALS, INC. (United States of America) LUDWIG INSTITUTE FOR CANCER RESEARCH (United States of America) 2015-03-08
2185165 PROCESS FOR THE SYNTHESIS OF CATIONIC SURFACTANTS DERIVED FROM THE CONDENSATION OF FATTY ACIDS WITH ESTERIFIED BASIC-CHARACTER AMINO ACIDS AND THEIR APPLICATION AS ANTIMICROBIAL AGENTS LABORATORIOS MIRET, S.A. (Spain) 2015-03-08
2185223 DRY HOUSEHOLD LUBRICANT KRAUSE, HENRY J. (United States of America) 2015-03-08
2215850 METHOD AND APPARATUS FOR DOCUMENT IDENTIFICATION CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2215853 A METHOD AND APPARATUS FOR AUTHENTICATING DOCUMENTS INCLUDING CURRENCY CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2215857 METHOD AND APPARATUS FOR DISCRIMINATING AND COUNTING DOCUMENTS CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2215864 METHOD OF GENERATING MODIFIED PATTERNS AND METHOD AND APPARATUS FOR USING THE SAME IN A CURRENCY IDENTIFICATION SYSTEM CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2215886 METHOD AND APPARATUS FOR CURRENCY DISCRIMINATION CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2215887 CURRENCY EVALUATION DEVICE AND METHOD CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2234393 METHOD AND APPARATUS FOR DISCRIMINATING AND COUNTING DOCUMENTS CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2247697 APPARATUS AND METHOD FOR CLASSIFYING A MEDIUM IN A COOKING CHAMBER AMETEK INC. (United States of America) 2015-03-08
2247698 ELECTRONIC CONTROL SYSTEM FOR A HEATING APPARATUS AMETEK INC. (United States of America) 2015-03-08
2357502 CURRENCY IDENTIFICATION DEVICE AND METHOD CUMMINS-ALLISON CORP. (United States of America) 2015-03-08
2379146 CURRENCY EVALUATION AND DISCRIMINATION CUMMINS-ALLISON CORP. (United States of America) 2015-03-08

List auto-generated on March 1, 2015