ERISFEIN 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 4/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 23, 2026
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Filing Velocity (24 Months)
Filing Activity by NICE Class
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Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 99565354 | ERISFEIN | Dec 24, 2025 | Registered | 010 Medical Devices | liang fei |
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FAQ: ERISFEIN trademark portfolio
What trademarks does ERISFEIN hold?
ERISFEIN 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 liang fei.
How many trademarks does ERISFEIN have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to ERISFEIN. The brand has been actively filing since December 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does ERISFEIN file most often?
ERISFEIN'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 ERISFEIN trademark?
The most recent filings under the ERISFEIN mark are registered to liang fei. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is ERISFEIN expanding into new categories?
The current WikiTrademarks Expansion Score for ERISFEIN 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 ERISFEIN trademark filings?
Click the Watch Brand button at the top of this page to add ERISFEIN 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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