SEMFLEX holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 40 (Material Treatment) 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 September 5, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Ownership & Assignment History
2 records| Date | From | To |
|---|---|---|
| Aug 12, 2014 |
TROMPETER ELECTRONICS, INC.
|
KEYBANK NATIONAL ASSOCIATION, AS ADMINIS...
CLEVELAND, OHIO
|
| Mar 13, 2014 |
SEMFLEX, INC.
|
TROMPETER ELECTRONICS, INC.
WASECA, MINNESOTA
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 74181175 | SEMFLEX | Jul 01, 1991 | Abandoned | 040 Material Treatment 042 Science & Technology | TROMPETER ELECTRONICS, INC. |
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FAQ: SEMFLEX trademark portfolio
What trademarks does SEMFLEX hold?
SEMFLEX holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 40 (Material Treatment), Class 42 (Science & Technology). The most recent filings are registered to TROMPETER ELECTRONICS, INC..
How many trademarks does SEMFLEX have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to SEMFLEX. The brand has been actively filing since July 1991. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does SEMFLEX file most often?
SEMFLEX's most active class is NICE Class 40 (Material Treatment), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the SEMFLEX trademark?
The most recent filings under the SEMFLEX mark are registered to TROMPETER ELECTRONICS, INC.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is SEMFLEX expanding into new categories?
The current WikiTrademarks Expansion Score for SEMFLEX 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 SEMFLEX trademark filings?
Click the Watch Brand button at the top of this page to add SEMFLEX 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 SEMFLEX to another owner · Browse all NICE classes · Most valuable brands
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