BULLDOG STAIR PARTS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 6 (Metal Goods) 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 August 1, 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 |
|---|---|---|---|---|---|
| 99254141 | BULLDOG STAIR PARTS | Jun 26, 2025 | Registered | 006 Metal Goods | Yang Liu |
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FAQ: BULLDOG STAIR PARTS trademark portfolio
What trademarks does BULLDOG STAIR PARTS hold?
BULLDOG STAIR PARTS holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 6 (Metal Goods). The most recent filings are registered to Yang Liu.
How many trademarks does BULLDOG STAIR PARTS have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to BULLDOG STAIR PARTS. The brand has been actively filing since June 2025. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does BULLDOG STAIR PARTS file most often?
BULLDOG STAIR PARTS's most active class is NICE Class 6 (Metal Goods), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the BULLDOG STAIR PARTS trademark?
The most recent filings under the BULLDOG STAIR PARTS mark are registered to Yang Liu. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is BULLDOG STAIR PARTS expanding into new categories?
The current WikiTrademarks Expansion Score for BULLDOG STAIR PARTS 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 BULLDOG STAIR PARTS trademark filings?
Click the Watch Brand button at the top of this page to add BULLDOG STAIR PARTS 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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