Wikimedia Foundation, Inc.
78 live US trademarks, filing since 2004. 2 new applications filed this year.
Marks held on the register, by filing date. 2026 is year to date.
A multi-class mark counts once per class. Rank shown where the owner is in the class's top 50.
What Wikimedia Foundation, Inc. filed most recently.
| Mark | Class | Filed | Basis | Status | Serial |
|---|---|---|---|---|---|
| ABSTRACT WIKIPEDIA | 38, 41, 42 | Oct 6, 2026 | — | pending | 50146310 |
| W | 35, 38, 41, 42 | May 1, 2026 | — | pending | 99798960 |
| W | 41, 42 | Oct 18, 2024 | — | registered Apr 15 | 98808845 |
| MEDIAWIKI | 9, 41, 42 | Jun 28, 2024 | — | registered Aug 25 | 98625108 |
| MEDIAWIKI | 9, 41, 42 | Jun 28, 2024 | — | registered Aug 25 | 98625114 |
| WIKTIONARY THE FREE DICTIONARY | 41, 42 | Jun 28, 2024 | — | registered Apr 22 | 98625123 |
| WIKISOURCE | 41, 42 | Jun 28, 2024 | — | published | 98625126 |
| WIKIBOOKS OPEN BOOKS FOR AN OPEN WORLD | 9, 41, 42 | Jun 28, 2024 | — | registered Apr 15 | 98625133 |
| W | 41, 42 | Nov 16, 2021 | — | registered Aug 1 | 97975701 |
| WIKIMEDIA ENTERPRISE | 35, 38, 41, 42 | Jun 22, 2021 | — | registered Feb 7 | 90978697 |
Registration starts the maintenance clock: a Section 8 declaration is due between years 5 and 6.
A filing missed by the due date enters a six-month grace period, then the registration cancels.
About Wikimedia Foundation, Inc. trademarks.
How many trademarks does Wikimedia Foundation, Inc. have?
78 live US trademarks as of October 23, 2026: 72 registered and 6 pending applications. 2 were filed in 2026 so far.
What does Wikimedia Foundation, Inc. sell, according to its trademarks?
Mostly education & entertainment (Class 41, 58 live marks). Also science & technology (saas) (Class 42) and electronics & software (Class 9).
Who owns the WIKIPEDIA trademark?
WIKIPEDIA is owned by Wikimedia Foundation, Inc.. It was registered on January 10, 2006 (Reg. No. 3040722) and is live. The same owner holds 77 other live US marks.
When did Wikimedia Foundation, Inc. first file a trademark?
Its oldest live US filing dates from 2004: WIKIPEDIA, filed September 14, 2004.
Know the morning after Wikimedia Foundation, Inc. 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.