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Duol Trademarks
DUOLETTE
Gaming tables
Abandoned
·
March 18, 2005
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78590166
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DUOLETTE
Gaming machines, namely devices which accept a wager and components, namely, controllers, displays, button panels, bolsters, electrical wiring, and associated computer hardware and computer software in the nature of operating software for the gaming machines.
Abandoned
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February 6, 2005
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78561426
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DUOLEV
Dietary supplements; topical analgesics; medicated lotions for decreasing joint pain and joint stiffness
Abandoned
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April 25, 2002
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76400912
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DUOLEVER
[ Motorcycles and their ] structural parts *for motorcycles*
Registered
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December 6, 2004
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79008869
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DUOLEX
A RECONSTRUCTION PRODUCT FOR USE IN HERNIA REPAIR
Abandoned
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October 25, 2000
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76154068
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DUOLIAN
STRINGED MUSICAL INSTRUMENTS, SPECIFICALLY GUITARS, [ MANDOLINS AND BANJOS, ] AND PARTS THEREFOR
Cancelled
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August 18, 1971
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72400443
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DUOLIANS
Amusement game machines; Badminton game playing equipment; Body-building apparatus; Construction toys; Drawing toys; Electric action toys; Inflatable toys; Paper streamers; Pet toys; Sand toys
Registered
·
July 14, 2023
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98086301
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DUOLICIOUS
Cheese; Butter; Butter substitutes; Cheese curds; Condensed milk; Cottage cheese; Cream cheese; Cultured milk; Dairy-based beverages; Dairy-based dips; Dairy-based food beverages; Dairy-based spreads; Farmer's cheese; Feta cheese; Fresh unripened cheeses; Kefir; Margarine; Milk; Mozzarella cheese; Soft cheese; Sour cream; Yogurt; Yogurt drinks; Cheese dips; Cheese spreads; Creamers for beverages; Fruit-based food beverage; Low fat dairy spreads; Milk beverages containing fruits; Yogurt-based ...
Registered
·
May 24, 2022
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97425865
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DUOLIEF
orally administered analgesic preparations for pain and pharmaceutical preparations for the treatment of allergies, sinus ailments, cold, and flu
Abandoned
·
October 3, 2019
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88640243
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DUOLIEF
Analgesics and dietary supplements
Cancelled
·
May 21, 2002
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78130210
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DUOLIEMI
Drums; Guitars; Ukuleles; Violins; Autoplaying electronic pianos; Electronic musical instruments; Electronic musical keyboards; Keyboard instruments; Music boxes; Musical instrument accessories, namely, stands, cases, carrying bags and storage bags; Musical instruments; Pedals for musical instruments; Percussion instruments; Piano keyboard covers; Replacement parts and fittings for musical instruments; Tuners for electronic musical instruments; Wind instruments
Registered
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August 19, 2020
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90122788
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DUOLIF
Microdermabrasion apparatus; medical apparatus and instruments for obesity treatment; medical apparatus and instruments for obesity treatment, pain relief, cosmetic treatment of face and body; infrared apparatus for medical purposes for obesity treatment, pain relief, cosmetic treatment of face and body; ultrashort wave esthetic apparatus for medical purposes for obesity treatment, pain relief, cosmetic treatment of face and body; medical apparatus and instruments using infrared ray for obesi...
Registered
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October 27, 2020
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90281639
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DUOLIFE
Food supplements; dietary and nutritional supplements; dietary supplements; vitamin preparations in the nature of food supplements; mineral dietary supplements for humans; food supplements in liquid form
Pending
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March 21, 2023
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97848516
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DUOLIFE
Food supplements; dietary and nutritional supplements; dietary supplements; vitamin preparations in the nature of food supplements; mineral dietary supplements for humans; food supplements in liquid form
Pending
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March 20, 2023
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97847287
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DUOLIFE
Food supplements; dietary and nutritional supplements; dietary supplements; vitamin preparations in the nature of food supplements; mineral dietary supplements for humans; food supplements in liquid form
Pending
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March 20, 2023
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97847084
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DUOLIFE
Dietary supplement drink mixes; Dietary supplement for eliminating toxins from the intestinal tract; Dietary supplemental drinks; Dietary supplemental drinks in the nature of vitamin and mineral beverages; Dietary supplements; Dietary supplements for animals; Dietary supplements for controlling cholesterol; Dietary supplements for human consumption; Dietary supplements for pets; Dietary supplements for treatment of claustrophobia; Dietary supplements for urinary health; Dietary supplements in...
Registered
·
December 22, 2016
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87277678
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DUOLIFE
Food supplements; nutritional supplements; dietary supplements for humans, food supplements in liquid form; fitness and endurance dietary supplements
Registered
·
September 8, 2020
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79295440
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DUOLIFT
Computer workstations comprising wall mounting tracks and track sliding components for supporting monitors, monitor arms, keyboard holders, trays, and peripheral devices; wire and cable management devices.
Pending
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October 14, 2024
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98799768
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DUOLIFT
power operated lifts and power operated lifting platforms
Cancelled
·
December 15, 1994
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74611288
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DUOLIFT
MACHINE PARTS; NAMELY, PERIPHERAL LINING FOR BALL MILLS AND PARTS THEREFOR
Cancelled
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November 2, 1988
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73761533
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DUOLIFU
Blouses; Cardigans; Dresses; Jumpsuits; Leggings; Shoes; Shorts; Sweatshirts; Swimsuits; T-shirts
Registered
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June 5, 2018
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87950012
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DUOLIN
Pharmaceutical and medicinal preparation for the treatment of respiratory diseases
Cancelled
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December 13, 2012
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85802098
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DUOLIN PARTS
Land vehicle suspension parts, namely, coil springs; License plate frames; Metal locking device for trailer hitch couplers; Motor homes and structural vehicle parts therefor; Rearview mirrors for automobiles; Vehicle power train mechanism comprised of clutch, transmission, drive shaft, and differential
Registered
·
June 3, 2023
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98026310
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DUOLINE
Fastening elements of metal, in particular pegs, studs, anchors, anchor bolts, threaded rods, screw nuts, hooks, profiles, nails; screws, rivets, washers for hardware, all the aforesaid goods of metal
Registered
·
July 18, 2017
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87532237
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DUOLINE
Measuring apparatus for vacuum devices and vacuum components not in the field of measurement technology for cereals and seeds and sampling technology for quality control of cereals and seeds, namely, pressure measuring apparatus, leak detectors for vacuum pumps and vacuum chambers; and electrical ducts, namely, electricity ducts
Registered
·
October 11, 2016
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79203036
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DUOLINE
Apparatus, instruments and systems comprised of electronic sensors and electric cabinets sold as a unit for measuring of bulk agricultural materials for one or more of the following, measurement, transmission, control storage, evaluation of temperature, material moisture content, atmospheric humidity, filling level, aeration, damage and disease; measuring instruments and data collecting apparatus for a plurality of temperature values not for medical use; computer programs stored in data media...
Registered
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April 3, 2009
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79069093
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DUOLINE
PLASTIC LINED METAL PIPE
Registered
·
September 16, 1985
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73558506
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DUOLINE
PIPE LINING SERVICES
Registered
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May 27, 1966
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72246811
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DUOLINGDAI
Cosmetics; Artificial fingernails; Cosmetic preparations; Cosmetic preparations for bath and shower; Cosmetic preparations for baths; Fingernail decals; Nail care preparations; Nail enamel removers; Nail enamels; Nail polish remover
Pending
·
May 13, 2024
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98548561
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DUOLINGO
Stuffed and plush toys
Registered
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September 3, 2020
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90157386
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DUOLINGO
All purpose carrying bags, tote bags, backpacks
Abandoned
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September 3, 2020
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90157382
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DUOLINGO
Stickers
Registered
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September 3, 2020
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90157377
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DUOLINGO
Sunglasses
Abandoned
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September 3, 2020
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90157365
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DUOLINGO
education services, namely, providing language proficiency testing and assessment services
Registered
·
July 14, 2020
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90052187
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DUOLINGO
Software as a service (SAAS) services featuring software for learning foreign languages; Providing a website featuring non-downloadable software for learning foreign languages
Registered
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December 6, 2019
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88718539
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DUOLINGO
Clothing, namely, shirts, hoodies, sweatshirts, jackets, knit face masks being headwear; headwear
Registered
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December 6, 2019
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88718536
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DUOLINGO
Lapel pins; Decorative pins, namely, ornamental lapel pins, ornamental novelty pins
Registered
·
December 6, 2019
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88718531
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DUOLINGO
language instruction; providing online classes for learning foreign languages; online journals, namely, blogs in the field of language instruction; translation services for others
Registered
·
January 21, 2014
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86171435
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DUOLINGO ABC
Software as a service (SAAS) services featuring software for literacy development and education; Providing a website featuring non-downloadable software for literacy development and education through games, stories and personalized lessons; providing on-line non-downloadable software for educational use, namely, software for developing reading skills
Abandoned
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May 2, 2023
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97917228
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DUOLINGO ABC
Educational services, namely, providing online interactive instruction in the field of literacy
Pending
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May 2, 2023
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97917223
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DUOLINGO ABC
Downloadable software for literacy development and education; downloadable mobile application software for literacy development and education
Pending
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May 2, 2023
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97917219
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DUOLINK
Pharmaceutical products, medical and veterinary preparations; medical hygiene products; foodstuffs and dietetic substances for medical or veterinary use
Abandoned
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January 26, 2024
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79393573
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DUOLINK
Chemical kit for analysis of protein interactions for laboratory research or industrial use
Registered
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February 11, 2020
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88792534
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DUOLINK
Clinical medical diagnostic reagents; medical diagnostic reagents and reagent bearing test strips for use in the field of genetic mutation; diagnostic agents, preparations, substances for medical and veterinary purposes and use; medical diagnostic reagents and assays for testing of body fluids; in vitro diagnostic preparations for medical and veterinary purposes and use; medical diagnostic reagents and assays for testing of body fluids; diagnostic preparations for medical purposes for detecti...
Abandoned
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March 29, 2012
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85583649
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DUOLINK
Telecommunication equipment and telecommunication software; telephone headsets and accessories therefor; microphone sets; ear hooks; telephone base stations consisting of a transceiver and a charger; travel chargers; software for telecommunications; software for handling communication between wireless headsets and telephone base stations
Abandoned
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January 7, 2004
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78348793
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DUOLINK
Chemical kit for analysis of protein interactions for laboratory, research or industrial use
Cancelled
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February 12, 2007
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77105658
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DUOLINK
Providing fixed and mobile satellite communication services; providing voice, data, streaming audio and video, e-mail, and download of large file transmission via satellite; providing multiple-user access to a global computer information network via satellite
Abandoned
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September 17, 2004
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76612697
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DUOLINK
FLOORING SYSTEM COMPRISING GLUELESS INTERLOCKING LAMINATE FLOORING PANELS
Cancelled
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July 19, 2001
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76287739
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DUOLINK
metal channels; namely, trays, raceways, conduits, and tubes, for holding electrical wires and cables within buildings
Cancelled
·
September 30, 1991
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74208350
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DUOLINK GO
Audio headphones; Computer keyboards; Computer mice; Loud speakers; Music headphones; Noise cancelling headphones; Wireless chargers; Wireless ear buds; Wireless speakers; Wireless transmitters and receivers; MP3 players
Registered
·
February 25, 2020
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88809444
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