DUROFLOW holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) with 1 filings. The WikiTrademarks Expansion Score is 16/100, 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)
Filing Activity by NICE Class
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99714403 | DUROFLOW | Mar 20, 2026 | Registered | 011 Lighting & HVAC | DelStar Technologies, Inc. |
| 77530494 | DUROFLOW | Jul 24, 2008 | Abandoned | 007 Machinery | INDUSTRIAL TECHNOLOGIES AND SERVICES, LLC |
Weekly visibility reports showing how ChatGPT mentions DUROFLOW, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: DUROFLOW trademark portfolio
What trademarks does DUROFLOW hold?
DUROFLOW holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC), Class 7 (Machinery). The most recent filings are registered to DelStar Technologies, Inc..
How many trademarks does DUROFLOW have at the USPTO?
WikiTrademarks tracks 2 USPTO trademark filings attributed to DUROFLOW. The brand has been actively filing since July 2008. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DUROFLOW file most often?
DUROFLOW'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 DUROFLOW trademark?
The most recent filings under the DUROFLOW mark are registered to DelStar Technologies, Inc.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DUROFLOW expanding into new categories?
The current WikiTrademarks Expansion Score for DUROFLOW is 16 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 DUROFLOW trademark filings?
Click the Watch Brand button at the top of this page to add DUROFLOW 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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