Trademark owner · USPTO register · rebuilt nightly

Northern Technologies International Corporation

30 live US trademarks, filing since 1978.

Live marks
30
registered + pending
Registered
27
on the Principal Register
Pending
3
applications in progress
Filed in 2026
0
by filing date
Classes used
8
of 45 Nice classes
First filing
1978
48 years on the register
At a glanceplain-language reads of the register
Spread across 8 classes. The largest is Class 16 (paper & printed matter) with 10 of 30 live marks.
5 registrations have a maintenance filing due in the next 12 months.
Filing activityapplications per year, by filing date
0 7 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Marks held on the register, by filing date. 2026 is year to date.

Portfolio by classlive marks · rank among filers in that class

A multi-class mark counts once per class. Rank shown where the owner is in the class's top 50.

Latest activity

What Northern Technologies International Corporation filed most recently.

MarkClassFiledBasisStatusSerial
ZERION 2 Feb 20, 2025 — registered Dec 9 99049476
ZERIOGUARD 1 Feb 12, 2025 — published 99038487
ZERUST INTEGRITY SOLUTIONS 42 Feb 7, 2025 — registered Dec 9 99032338
ZERIOS 2 Feb 6, 2025 — registered Dec 23 99031022
ZERIOL 2 Feb 6, 2025 — registered Dec 9 99031028
VAPORPAK 2 Feb 5, 2025 — registered Sep 1 99029844
ZERIOTEC 2 Feb 5, 2025 — published 99029869
ICB 2, 16, 17, 20 Sep 6, 2024 — published 98737082
Z-PAK 9 Dec 6, 2019 — registered Jan 5 88717970
NATUR-VCI 16 Dec 6, 2019 — registered Dec 1 88718039
Recently registeredlast 12 months
VAPORPAK · Cl. 2 · Reg. 8,425,540
Sep 1, 2026
ZERIOS · Cl. 2 · Reg. 8,074,820
Dec 23, 2025
ZERIOL · Cl. 2 · Reg. 8,056,568
Dec 9, 2025
ZERUST INTEGRITY SOLUTIONS · Cl. 42 · Reg. 8,056,572
Dec 9, 2025
ZERION · Cl. 2 · Reg. 8,056,648
Dec 9, 2025

Registration starts the maintenance clock: a Section 8 declaration is due between years 5 and 6.

Maintenance windows aheadnext 12 months · from registration dates
NATUR-VCI · Reg. 6,212,714 · registered Dec 2020
Section 8 declaration (years 5–6)
Dec 1, 2025 → Dec 1, 2026
Z-PAK · Reg. 6,241,258 · registered Jan 2021
Section 8 declaration (years 5–6)
Jan 5, 2026 → Jan 5, 2027
CIRCULE · Reg. 6,373,754 · registered Jun 2021
Section 8 declaration (years 5–6)
Jun 1, 2026 → Jun 1, 2027
ICT · Reg. 3,263,265 · registered Jul 2007
Section 8 & 9 renewal (year 20)
Jul 10, 2026 → Jul 10, 2027
Z-CIS · Reg. 3,276,504 · registered Aug 2007
Section 8 & 9 renewal (year 20)
Aug 7, 2026 → Aug 7, 2027

A filing missed by the due date enters a six-month grace period, then the registration cancels.

Names on the registerwhat this page merges, and what it leaves out
NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION · 30 live marks
included
Northern Tool & Equipment Company, Inc. · 102 live marks · may be a related company
separate page
Northern Innovations Holding Corp. · 67 live marks · may be a related company
separate page
Northern Safety Co., Inc. · 60 live marks · may be a related company
separate page
Northern Trust Corporation · 44 live marks · may be a related company
separate page
Northern Brewer, LLC · 28 live marks · may be a related company
separate page

Spellings are merged when they differ only in punctuation or legal suffix. Anything else stays separate rather than guessed.

Common questions

About Northern Technologies International Corporation trademarks.

How many trademarks does Northern Technologies International Corporation have?

30 live US trademarks as of October 23, 2026: 27 registered and 3 pending applications. None have been filed in 2026 so far.

What does Northern Technologies International Corporation sell, according to its trademarks?

Mostly paper & printed matter (Class 16, 10 live marks). Also paints & coatings (Class 2) and rubber & plastics (Class 17).

Who owns the COR TAB trademark?

COR TAB is owned by Northern Technologies International Corporation. It was registered on October 24, 1978 (Reg. No. 1104578) and is live. The same owner holds 29 other live US marks.

When did Northern Technologies International Corporation first file a trademark?

Its oldest live US filing dates from 1978: COR TAB, filed March 30, 1978.

Know the morning after Northern Technologies International Corporation files.

Watch this company in Thorgate and get an alert for every new application, registration, publication and lapse, with the opposition deadline already worked out. Or monitor your own marks for conflicts with theirs.

Data: USPTO trademark bulk files, processed nightly by Thorgate. Last rebuilt October 23, 2026. Counts cover the US federal register only, not state or foreign marks. Owner names are shown as recorded by the USPTO. This page reports public-record facts and dates and is not legal advice. For the official record of any mark, follow its serial number to USPTO TSDR.