TrademarkCheck

Is it a trademark in Canada?

“DOI”

Yes. 2 live marks on the Canadian register are named DOI: 1 registered and 1 still in progress.

Held by TOPDON USA INC (1) and Aptorum Group Limited (1).

What these marks cover

Nice classes the marks with this name are filed in, and how many marks in each.

Marks named DOI

MarkOwnerClassesStandingYear
DOI
2087329 · TMA1194273
TOPDON USA INC9 ElectronicsRegistered2023
DOI
1982316
Aptorum Group Limited5 PharmaceuticalsPending2019

Sounds the same

Spelled differently, said the same way.

MarkOwnerClassesStandingYear
DOE
2263185 · TMA1281487 · design
DOE INTERNATIONAL TRADING (SHANGHAI) CO. LTD.25 ClothingRegistered2025
DO
2242543 · TMA1280934
Bio A3P inc.3 CosmeticsRegistered2025
DO
2034348 · TMA1157196 · design
123Dentist Inc.44 MedicalRegistered2022
DHI
2023894 · TMA1223505
Owner not shown9 Electronics41 Education42 ScienceRegistered2024
D4I
2006376 · TMA1208112 · design
IEEE Industry Standards and Technology Organization, Inc.9 Electronics11 Lighting38 Telecommunications+2Registered2023
D4i
2004056 · TMA1208102
IEEE Industry Standards and Technology Organization, Inc.9 Electronics11 Lighting38 Telecommunications+2Registered2023
DWI
1940486 · TMA1137818
an individual7 Machines9 Electronics12 VehiclesRegistered2022
DHI
1892378 · TMA1119000
Ontario Dairy Herd Improvement Corporation35 Advertising40 Treatment42 Science+1Registered2022
DO
1838782 · TMA1153640 · design
EMYODE SERVICES CONSEILS INC.9 Electronics35 Advertising41 Education+1Registered2022
DDI
1665814 · TMA963569
DDI Alliance AKA Data Documentation Initiative (Unincorporated Association, United States)42 ScienceRegistered2017
DEI
1612491 · TMA872735 · design
Distinctive Engineering Inc.35 Advertising37 Construction40 Treatment+1Registered2014
DO
1599637 · TMA916677 · design
2264785 Ontario Inc.38 Telecommunications45 LegalRegistered2015
DDI
1516472 · TMA820079 · design
DEVELOPMENT DIMENSIONS INTERNATIONAL, INC.35 Advertising41 EducationRegistered2012
DO
1411858 · TMA819052 · design
Pro-Direct Sport Limited25 ClothingRegistered2012
DI
1406034 · TMA780286
Disclosure Insight, Inc.9 Electronics16 Paper35 Advertising+1Registered2010
DO2
1380697 · TMA739137
ENVERUS CANADA, INC.9 Electronics42 ScienceRegistered2009
DOW
1223961 · TMA691964
The Dow Chemical Company25 Clothing35 Advertising41 EducationRegistered2007
DOW
1223960 · TMA691963 · design
The Dow Chemical Company25 Clothing35 Advertising41 EducationRegistered2007
DI
1068797 · TMA602913
Mark' Andy, Inc. and Mark Andy UK Ltd.7 MachinesRegistered2004
DOA
1067722 · TMA574503
Koei Tecmo Games Co. Ltd.9 Electronics28 ToysRegistered2003
DI
1059349 · TMA561786
Mark' Andy, Inc. and Mark Andy UK Ltd.2 Paints7 Machines9 ElectronicsRegistered2002
DTI
0890714 · TMA518321
Henkel AG & Co. KGaA4 OilsRegistered1999
DDI
0765137 · TMA452555 · design
DOCTOR'S DATA, INC.35 Advertising42 ScienceRegistered1995
DDI
0662793 · TMA403827
DEVELOPMENT DIMENSIONS INTERNATIONAL, INC.35 Advertising41 EducationRegistered1992
DI
0545050 · TMA317681 · design
DASHWOOD INDUSTRIES LIMITED6 Metal19 Building25 ClothingRegistered1986

Marks containing DOI

MarkOwnerClassesStandingYear
DOI CHAANG COFFEE
1315063 · TMA704483
Doi Chaang Coffee Limited Partnership9 Electronics11 Lighting16 Paper+5Registered2008
DD DOI DEP INDISPENSABLE
2256600 · design
an individual32 Beer43 RestaurantsPending2023
COFFEE. ELEVATED. DOI CHAANG
1386763 · TMA750527 · design
Doi Chaang Coffee Limited Partnership7 Machines9 Electronics16 Paper+5Registered2009
DOI CHAANG FRESHLY ROASTED 100% SHB ARABIC COFFEE SELECT BEST QUALITY BEANS
1315068 · TMA704485 · design
Doi Chaang Coffee Limited Partnership9 Electronics11 Lighting16 Paper+5Registered2008

Spelled close

A letter or two away.

MarkOwnerClassesStandingYear
DOIT
2361990 · design
ACTIVE LIFESTYLE PTE LTD28 ToysPending2024

Search CIPO's Canadian Trademarks Database for anything filed after January 22, 2025.

This shows what is on the Canadian trademark register and what looks or sounds similar. It is not legal advice and not a clearance search: it cannot say whether a name is safe to use or would conflict with another mark. A trademark agent can.

Register as of January 22, 2025: CIPO's latest public data release (Open Government Licence – Canada). Marks filed or changed since then are not here yet. Check the current record on CIPO's own database before relying on it.