GROMASTER holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) with 1 filings. The WikiTrademarks Expansion Score is 3/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 2, 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 |
|---|---|---|---|---|---|
| 99226796 | GROMASTER | Jun 10, 2025 | Registered | 001 Chemicals | Mayo Fertilizer, Incorporated |
| 90547798 | GROMASTER | Feb 25, 2021 | Registered | 011 Lighting & HVAC | GROWER DIRECT SUPPLY INC |
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FAQ: GROMASTER trademark portfolio
What trademarks does GROMASTER hold?
GROMASTER holds 2 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC), Class 1 (Chemicals). The most recent filings are registered to Mayo Fertilizer, Incorporated.
How many trademarks does GROMASTER have at the USPTO?
WikiTrademarks tracks 2 USPTO trademark filings attributed to GROMASTER. The brand has been actively filing since February 2021. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does GROMASTER file most often?
GROMASTER'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 GROMASTER trademark?
The most recent filings under the GROMASTER mark are registered to Mayo Fertilizer, Incorporated. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is GROMASTER expanding into new categories?
The current WikiTrademarks Expansion Score for GROMASTER is 3 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 GROMASTER trademark filings?
Click the Watch Brand button at the top of this page to add GROMASTER 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 GROMASTER to another owner · Browse all NICE classes · Most valuable brands
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