SIERALYN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals) with 1 filings. The WikiTrademarks Expansion Score is 1/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed November 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 |
|---|---|---|---|---|---|
| 99109683 | SIERALYN | Mar 28, 2025 | Pending | 005 Pharmaceuticals | Hangzhou Qianyuan Trading Co., Ltd. |
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FAQ: SIERALYN trademark portfolio
What trademarks does SIERALYN hold?
SIERALYN holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 5 (Pharmaceuticals). The most recent filings are registered to Hangzhou Qianyuan Trading Co., Ltd..
How many trademarks does SIERALYN have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to SIERALYN. The brand has been actively filing since March 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does SIERALYN file most often?
SIERALYN's most active class is NICE Class 5 (Pharmaceuticals), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the SIERALYN trademark?
The most recent filings under the SIERALYN mark are registered to Hangzhou Qianyuan Trading Co., Ltd.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is SIERALYN expanding into new categories?
The current WikiTrademarks Expansion Score for SIERALYN is 1 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 SIERALYN trademark filings?
Click the Watch Brand button at the top of this page to add SIERALYN 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 SIERALYN to another owner · Browse all NICE classes · Most valuable brands
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