Is it a trademark in Canada?

“I3S”

Yes. 1 live mark on the Canadian register is named I3S: 1 registered.

Check another name

What these marks cover

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

9Electronics and software1

Marks named I3S

Mark	Owner	Classes	Standing	Year
I3S 1875879 · TMA1080296	JENOPTIK OPTICAL SYSTEMS GMBH	9 Electronics	Registered	2020
Registered20209 Electronics

Sounds the same

Spelled differently, said the same way.

Mark	Owner	Classes	Standing	Year
IAS 2087322 · TMA1190505	Integral Ad Science, Inc.	35 Advertising	Registered	2023
Registered202335 Advertising
ICS 2019734 · TMA1203545	an individual	29 Meat 30 Coffee	Registered	2023
Registered202329 Meat 30 Coffee
IKS 1911134 · TMA1121876 · design	International Knife & Saw, Inc.	7 Machines 8 Hand 16 Paper	Registered	2022
Registered20227 Machines 8 Hand 16 Paper
IKS 1906196 · TMA1102659	Sandeep Diamond Corporation	14 Jewellery	Registered	2021
Registered202114 Jewellery
IXS 1891436 · TMA1084081	DENTAL IMAGING TECHNOLOGIES CORPORATION	10 Medical	Registered	2020
Registered202010 Medical
IS 1881778 · TMA1131434 · design	TELUS Corporation	38 Telecommunications	Registered	2022
Registered202238 Telecommunications
IAS 1879424 · TMA1076829	Integral Ad Science, Inc.	42 Science	Registered	2020
Registered202042 Science
IES 1849558 · TMA1017265 · design	Illuminating Engineering Society	35 Advertising 41 Education	Registered	2019
Registered201935 Advertising 41 Education
IES 1849556 · TMA1017268	Illuminating Engineering Society	35 Advertising 41 Education	Registered	2019
Registered201935 Advertising 41 Education
IGS 1845997 · TMA1088817 · design	Victaulic Company	6 Metal 7 Machines 9 Electronics	Registered	2020
Registered20206 Metal 7 Machines 9 Electronics
IS 1835013 · TMA1096708 · design	THG Nutrition Limited	5 Pharmaceuticals 35 Advertising 41 Education+1	Registered	2021
Registered20215 Pharmaceuticals 35 Advertising 41 Education+1
IXS 1803849 · TMA1038754 · design	an individual	3 Cosmetics 4 Oils 9 Electronics+6	Registered	2019
Registered20193 Cosmetics 4 Oils 9 Electronics+6
IWS 1630582 · TMA897568	Alta-Fab Structures Ltd.	12 Vehicles	Registered	2015
Registered201512 Vehicles
ISS+ 1571177 · TMA896321 · design	an individual	7 Machines	Registered	2015
Registered20157 Machines
ISS 1565376 · TMA849194 · design	Owner not shown	35 Advertising 36 Finance 37 Construction+2	Registered	2013
Registered201335 Advertising 36 Finance 37 Construction+2
IHS 1544074 · TMA860580 · design	IHS Global Inc.	9 Electronics 16 Paper 35 Advertising+8	Registered	2013
Registered20139 Electronics 16 Paper 35 Advertising+8
IGS 1506821 · TMA867952	SGS Canada Inc.	9 Electronics 41 Education 42 Science	Registered	2013
Registered20139 Electronics 41 Education 42 Science
IOS 1502321 · TMA806585	Cisco Technology, Inc.	9 Electronics 37 Construction 42 Science	Registered	2011
Registered20119 Electronics 37 Construction 42 Science
ICS 1488689 · TMA941711	ICS Inventory, LLC	42 Science	Registered	2016
Registered201642 Science
ICS 1488688 · TMA798875	ICS Inventory, LLC	16 Paper 35 Advertising 41 Education+1	Registered	2011
Registered201116 Paper 35 Advertising 41 Education+1
ISS 1478264 · TMA918161	Owner not shown	9 Electronics 37 Construction 42 Science	Registered	2015
Registered20159 Electronics 37 Construction 42 Science
IS 1454637 · TMA780264 · design	an individual	25 Clothing	Registered	2010
Registered201025 Clothing
IS 1399082 · TMA781714 · design	Bombardier Recreational Products Inc.	12 Vehicles	Registered	2010
Registered201012 Vehicles
ISS 1396868 · TMA751982	Inspection Support Services Inc.	9 Electronics 16 Paper 41 Education	Registered	2009
Registered20099 Electronics 16 Paper 41 Education
IS 1357163 · TMA787401 · design	an individual	9 Electronics	Registered	2011
Registered20119 Electronics

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.