HARMONYUM holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 41 (Education & Entertainment) with 1 filings. The WikiTrademarks Expansion Score is 0/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed August 18, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Ownership & Assignment History
1 record| Date | From | To |
|---|---|---|
| Mar 25, 2014 |
NAAM GLOBAL, LLC
|
ROOTLIGHT, INC.
NEW YORK, NEW YORK
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 78851266 | HARMONYUM | Mar 31, 2006 | Abandoned | 041 Education & Entertainment | ROOTLIGHT, INC. |
Weekly visibility reports showing how ChatGPT mentions HARMONYUM, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: HARMONYUM trademark portfolio
What trademarks does HARMONYUM hold?
HARMONYUM holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 41 (Education & Entertainment). The most recent filings are registered to ROOTLIGHT, INC..
How many trademarks does HARMONYUM have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to HARMONYUM. The brand has been actively filing since March 2006. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does HARMONYUM file most often?
HARMONYUM's most active class is NICE Class 41 (Education & Entertainment), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the HARMONYUM trademark?
The most recent filings under the HARMONYUM mark are registered to ROOTLIGHT, INC.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is HARMONYUM expanding into new categories?
The current WikiTrademarks Expansion Score for HARMONYUM is 0 out of 100, which is low — the brand is focused on defending its existing categories rather than expanding. The score combines NICE class breadth, filing velocity, and the rate of cross-class movement from the brand's filing history.
How can I track new HARMONYUM trademark filings?
Click the Watch Brand button at the top of this page to add HARMONYUM to your Watchlist. New filings show up on your WikiTrademarks dashboard within 24 to 48 hours of being public, alongside any class expansions, status changes, or assignment events.
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