DAYIN holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) with 1 filings. The WikiTrademarks Expansion Score is 7/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed July 28, 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 |
|---|---|---|---|---|---|
| 99263397 | DAYIN | Jul 02, 2025 | Registered | 011 Lighting & HVAC | SENDFU TRADING CO., LIMITED |
| 99039858 | DAYIN | Feb 13, 2025 | Registered | 001 Chemicals 002 Paints & Coatings 009 Electronics & Software | Zinno Print Technology (Suzhou) Company Limited. |
| 88425766 | DAYIN | May 11, 2019 | Pending | 012 Vehicles | Shenzhen Yijiu Outdoor Accessories Co.,Ltd. |
Weekly visibility reports showing how ChatGPT mentions DAYIN, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: DAYIN trademark portfolio
What trademarks does DAYIN hold?
DAYIN holds 3 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC), Class 12 (Vehicles), Class 1 (Chemicals). The most recent filings are registered to SENDFU TRADING CO., LIMITED.
How many trademarks does DAYIN have at the USPTO?
WikiTrademarks tracks 3 USPTO trademark filings attributed to DAYIN. The brand has been actively filing since May 2019. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does DAYIN file most often?
DAYIN'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 DAYIN trademark?
The most recent filings under the DAYIN mark are registered to SENDFU TRADING CO., LIMITED. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is DAYIN expanding into new categories?
The current WikiTrademarks Expansion Score for DAYIN is 7 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 DAYIN trademark filings?
Click the Watch Brand button at the top of this page to add DAYIN 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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