DURKEN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 7 (Machinery) with 1 filings. The WikiTrademarks Expansion Score is 4/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed August 23, 2026
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Filing Velocity (24 Months)
Filing Activity by NICE Class
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99395474 | DURKEN | Sep 16, 2025 | Registered | 007 Machinery | DURKEN HEARN FLOW CONTROL INC. |
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FAQ: DURKEN trademark portfolio
What trademarks does DURKEN hold?
DURKEN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 7 (Machinery). The most recent filings are registered to DURKEN HEARN FLOW CONTROL INC..
How many trademarks does DURKEN have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to DURKEN. The brand has been actively filing since September 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DURKEN file most often?
DURKEN's most active class is NICE Class 7 (Machinery), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the DURKEN trademark?
The most recent filings under the DURKEN mark are registered to DURKEN HEARN FLOW CONTROL INC.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DURKEN expanding into new categories?
The current WikiTrademarks Expansion Score for DURKEN is 4 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 DURKEN trademark filings?
Click the Watch Brand button at the top of this page to add DURKEN 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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