DUO EXTEND holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 10 (Medical Devices) with 1 filings. The WikiTrademarks Expansion Score is 1/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed June 14, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 98192229 | DUO EXTEND | Sep 22, 2023 | Pending | 010 Medical Devices | KONINKLIJKE PHILIPS N.V. |
Weekly visibility reports showing how ChatGPT mentions DUO EXTEND, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: DUO EXTEND trademark portfolio
What trademarks does DUO EXTEND hold?
DUO EXTEND holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 10 (Medical Devices). The most recent filings are registered to KONINKLIJKE PHILIPS N.V..
How many trademarks does DUO EXTEND have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DUO EXTEND. The brand has been actively filing since September 2023. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DUO EXTEND file most often?
DUO EXTEND's most active class is NICE Class 10 (Medical Devices), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DUO EXTEND trademark?
The most recent filings under the DUO EXTEND mark are registered to KONINKLIJKE PHILIPS N.V.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DUO EXTEND expanding into new categories?
The current WikiTrademarks Expansion Score for DUO EXTEND is 1 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 DUO EXTEND trademark filings?
Click the Watch Brand button at the top of this page to add DUO EXTEND 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.
More on this portfolio: Compare DUO EXTEND to another owner · Browse all NICE classes · Most valuable brands