DUOLINGO by Duolingo, Inc. (Track this)
Intl: (028) Toys and sporting goods US: 022; 023; 038; 050 Filing date: 03-Sep-2020 Serial number: 90157386
BIOLINGO by BioLingo Inc. (Track this)
Intl: (041) Education and entertainment US: 100; 101; 107 Filing date: 13-Aug-2020 Serial number: 90112167
DUOLINGO by Duolingo, Inc. (Track this)
Intl: (041) Education and entertainment; (042) Computer, scientific & legal US: 100; 101; 107; 100; 101 Filing date: 14-Jul-2020 Serial number: 90052187
DUOLINGO by Duolingo, Inc. (Track this)
Intl: (025) Clothing US: 022; 039 Filing date: 06-Dec-2019 Serial number: 88718536
DUOLINGO by Duolingo, Inc. (Track this)
Intl: (014) Jewelry US: 002; 027; 028; 050 Filing date: 06-Dec-2019 Serial number: 88718531
DUOLINGO by Duolingo, Inc. (Track this)
Intl: (042) Computer, scientific & legal US: 100; 101 Filing date: 06-Dec-2019 Serial number: 88718539
PROLINGO APP by QUINZ ENTERPRISES, INC. (Track this)
Intl: (009) Electrical and scientific apparatus; (042) Computer, scientific & legal US: 021; 023; 026; 036; 038; 100; 101 Filing date: 18-Sep-2019 Serial number: 88621456
ZOOLINGO by GAMMA WEB LIMITED (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 26-Sep-2017 Serial number: 87622057
ADOLINGO by Shenzhenshi Boteshun dianzishangwu youxiangongsi (Track this)
Intl: (021) Housewares and glass US: 002; 013; 023; 029; 030; 033; 040; 050 Filing date: 27-Apr-2017 Serial number: 87429085
MOJOLINGO by Mojo Lingo LLC (Track this)
Intl: (009) Electrical and scientific apparatus; (042) Computer, scientific & legal US: 021; 023; 026; 036; 038; 100; 101 Filing date: 20-Sep-2014 Serial number: 86400916
PROLINGO by Quinz Enterprises, Inc. (Track this)
Intl: (038) Telecommunications; (009) Electrical and scientific apparatus; (035) Advertising and business; (041) Education and entertainment US: 100; 101; 104; 021; 023; 026; 036; 038; 100; 101; 102; 100; 101; 107 Filing date: 11-May-2014 Serial number: 86278023
DUOLINGO by Duolingo, Inc. (Track this)
Intl: (009) Electrical and scientific apparatus; (041) Education and entertainment US: 021; 023; 026; 036; 038; 100; 101; 107 Filing date: 21-Jan-2014 Serial number: 86171435
TOLINGO by tolingo GmbH (Track this)
Intl: (038) Telecommunications; (041) Education and entertainment; (042) Computer, scientific & legal US: 100; 101; 104; 100; 101; 107; 100; 101 Filing date: 24-Oct-2008 Serial number: 79064983