Trademark owner · USPTO register · rebuilt nightly

American Petroleum Institute

76 live US trademarks, filing since 1958. 1 new application filed this year.

Live marks
76
registered + pending
Registered
71
on the Principal Register
Pending
5
1 open to opposition
Filed in 2026
1
by filing date
Classes used
9
of 45 Nice classes
First filing
1958
68 years on the register
At a glanceplain-language reads of the register
Mostly science & technology (saas): 32 of 76 live marks are in Class 42. Education & entertainment (Class 41) is next with 26.
Entering Class 4 (fuels & lubricants): first filings this year in a class with no earlier American Petroleum Institute marks.
One mark is open to opposition now; the window closes Oct 29.
8 registrations have a maintenance filing due in the next 12 months, 4 already in the grace period.
Filing activityapplications per year, by filing date
0 7 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 1 so far

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 American Petroleum Institute filed most recently.

MarkClassFiledBasisStatusSerial
API 4 Apr 22, 2026 — published · closes Oct 29 99780497
AMERICA BUILDS. AMERICA WINS. 35, 41, 42 Oct 20, 2025 — published 99452176
THE ENVIRONMENTAL PARTNERSHIP 35, 42 Mar 28, 2025 — registered Mar 10 99109172
API REPAIR & REMANUFACTURE PROGRAM Jan 15, 2025 — pending 98965004
R Jan 15, 2025 — pending 98965070
THE ENVIRONMENTAL PARTNERSHIP 35 Aug 12, 2024 — registered Feb 4 98694932
THE ENVIRONMENTAL PARTNERSHIP 42 Aug 12, 2024 — registered Feb 4 98694933
LIGHTS ON ENERGY 35, 41, 42 Feb 9, 2024 — registered Dec 17 98400024
LIGHTS ON ENERGY 35, 41, 42 Feb 9, 2024 — registered Dec 17 98400039
LIDERES DE LA ENERGIA 35, 42 Sep 27, 2023 — registered Sep 24 98200130
Open to opposition now30-day windows from publication
API · Cl. 4 · published Sep 29
closes Oct 29

Anyone who believes they would be harmed by registration can oppose during this window.

Recently registeredlast 12 months
THE ENVIRONMENTAL PARTNERSHIP · Cl. 35, 42 · Reg. 8,164,789
Mar 10, 2026

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

Maintenance windows aheadnext 12 months · from registration dates
WE'RE ON IT · Reg. 6,139,893 · registered Sep 2020
Section 8 declaration (years 5–6) · in grace period until Mar 1, 2027
Sep 1, 2025 → Sep 1, 2026
18 LCM API STANDARD 18LCM REGISTERED · Reg. 6,147,914 · registered Sep 2020
Section 8 declaration (years 5–6) · in grace period until Mar 8, 2027
Sep 8, 2025 → Sep 8, 2026
PIPELINE SMS ASSESSMENT PROGRAM · Reg. 6,149,604 · registered Sep 2020
Section 8 declaration (years 5–6) · in grace period until Mar 8, 2027
Sep 8, 2025 → Sep 8, 2026
ENERGY FOR PROGRESS · Reg. 6,178,239 · registered Oct 2020
Section 8 declaration (years 5–6) · in grace period until Apr 20, 2027
Oct 20, 2025 → Oct 20, 2026
Q1 · Reg. 5,110,176 · registered Dec 2016
Section 8 & 9 renewal (year 10)
Dec 27, 2025 → Dec 27, 2026
Q2 API SPEC Q2 REGISTERED · Reg. 5,110,177 · registered Dec 2016
Section 8 & 9 renewal (year 10)
Dec 27, 2025 → Dec 27, 2026
API-U · Reg. 5,124,470 · registered Jan 2017
Section 8 & 9 renewal (year 10)
Jan 17, 2026 → Jan 17, 2027
AMERICAN PETROLEUM INSTITUTE SAE CERTIFIED FOR GASOLINE ENGINES · Reg. 6,301,908 · registered Mar 2021
Section 8 declaration (years 5–6)
Mar 23, 2026 → Mar 23, 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
AMERICAN PETROLEUM INSTITUTE · 76 live marks
included
American Promotional Events, Inc. · 304 live marks · may be a related company
separate page
American Sports Licensing, LLC · 235 live marks · may be a related company
separate page
American City Business Journals, Inc. · 220 live marks · may be a related company
separate page
American Express Marketing & Development Corp. · 205 live marks · may be a related company
separate page
American Girl, LLC · 196 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 American Petroleum Institute trademarks.

How many trademarks does American Petroleum Institute have?

76 live US trademarks as of October 23, 2026: 71 registered and 5 pending applications. 1 were filed in 2026 so far.

What does American Petroleum Institute sell, according to its trademarks?

Mostly science & technology (saas) (Class 42, 32 live marks). Also education & entertainment (Class 41) and advertising & business (Class 35).

Who owns the API trademark?

API is owned by American Petroleum Institute. It was registered on April 21, 1959 (Reg. No. 0677359) and is live. The same owner holds 75 other live US marks.

When did American Petroleum Institute first file a trademark?

Its oldest live US filing dates from 1958: API, filed July 14, 1958.

Know the morning after American Petroleum Institute 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.