SEALMARK holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 19 (Building Materials) 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 15, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
No activity recorded yet.
Ownership & Assignment History
3 records| Date | From | To |
|---|---|---|
| Sep 21, 2016 |
ROCK OF AGES CORPORATION
|
BANK OF MONTREAL, AS SUBORDINATE AGENT
TORONTO
|
| Sep 20, 2016 |
ROCK OF AGES CORPORATION
|
BANK OF MONTREAL, AS SENIOR AGENT
TORONTO
|
| Sep 19, 2016 |
PEOPLE'S UNITED BANK, AS AGENT
|
SWENSON GRANITE COMPANY, LLC
WILMINGTON, DELAWARE
ROCK OF AGES CORPORATION
GRANITEVILLE, VERMONT
CAROLINA QUARRIES, INC.
WILMINGTON, DELAWARE
PENNSYLVANIA GRANITE CORP.
DELAWARE, PENNSYLVANIA
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 72161423 | SEALMARK | Jan 25, 1963 | Abandoned | 019 Building Materials | ROCK OF AGES CORPORATION |
Weekly visibility reports showing how ChatGPT mentions SEALMARK, where you rank in the answer, the sentiment of the mention, and which sources ChatGPT cites.
FAQ: SEALMARK trademark portfolio
What trademarks does SEALMARK hold?
SEALMARK holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 19 (Building Materials). The most recent filings are registered to ROCK OF AGES CORPORATION.
How many trademarks does SEALMARK have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to SEALMARK. The brand has been actively filing since January 1963. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does SEALMARK file most often?
SEALMARK's most active class is NICE Class 19 (Building Materials), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the SEALMARK trademark?
The most recent filings under the SEALMARK mark are registered to ROCK OF AGES CORPORATION. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is SEALMARK expanding into new categories?
The current WikiTrademarks Expansion Score for SEALMARK 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 SEALMARK trademark filings?
Click the Watch Brand button at the top of this page to add SEALMARK 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 SEALMARK to another owner · Browse all NICE classes · Most valuable brands