CELLSEED holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals) 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 June 17, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 74549607 | CELLSEED | Jul 15, 1994 | Abandoned | 001 Chemicals | Nippon Kagaku Kogyo Kabushiki Kaisha |
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FAQ: CELLSEED trademark portfolio
What trademarks does CELLSEED hold?
CELLSEED holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 1 (Chemicals). The most recent filings are registered to Nippon Kagaku Kogyo Kabushiki Kaisha.
How many trademarks does CELLSEED have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to CELLSEED. The brand has been actively filing since July 1994. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does CELLSEED file most often?
CELLSEED's most active class is NICE Class 1 (Chemicals), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the CELLSEED trademark?
The most recent filings under the CELLSEED mark are registered to Nippon Kagaku Kogyo Kabushiki Kaisha. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is CELLSEED expanding into new categories?
The current WikiTrademarks Expansion Score for CELLSEED 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 CELLSEED trademark filings?
Click the Watch Brand button at the top of this page to add CELLSEED 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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