DURO-DYNE holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) 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 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 |
|---|---|---|---|---|---|
| 72095984 | DURO-DYNE | Apr 28, 1960 | Abandoned | 011 Lighting & HVAC | DURO DYNE CORPORATION |
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FAQ: DURO-DYNE trademark portfolio
What trademarks does DURO-DYNE hold?
DURO-DYNE holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC). The most recent filings are registered to DURO DYNE CORPORATION.
How many trademarks does DURO-DYNE have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DURO-DYNE. The brand has been actively filing since April 1960. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DURO-DYNE file most often?
DURO-DYNE's most active class is NICE Class 11 (Lighting & HVAC), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DURO-DYNE trademark?
The most recent filings under the DURO-DYNE mark are registered to DURO DYNE CORPORATION. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DURO-DYNE expanding into new categories?
The current WikiTrademarks Expansion Score for DURO-DYNE 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 DURO-DYNE trademark filings?
Click the Watch Brand button at the top of this page to add DURO-DYNE 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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