KNIFE EDGE SEAL holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 7 (Machinery) 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
1 record| Date | From | To |
|---|---|---|
| Jan 27, 2026 |
NIPPON PILLAR KOGYO KABUSHIKI KAISHA
|
PILLAR CORPORATION
OSAKA-SHI, OSAKA
|
Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 74070833 | KNIFE EDGE SEAL | Jun 19, 1990 | Abandoned | 007 Machinery | PILLAR CORPORATION |
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FAQ: KNIFE EDGE SEAL trademark portfolio
What trademarks does KNIFE EDGE SEAL hold?
KNIFE EDGE SEAL holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 7 (Machinery). The most recent filings are registered to PILLAR CORPORATION.
How many trademarks does KNIFE EDGE SEAL have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to KNIFE EDGE SEAL. The brand has been actively filing since June 1990. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does KNIFE EDGE SEAL file most often?
KNIFE EDGE SEAL's most active class is NICE Class 7 (Machinery), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the KNIFE EDGE SEAL trademark?
The most recent filings under the KNIFE EDGE SEAL mark are registered to PILLAR CORPORATION. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is KNIFE EDGE SEAL expanding into new categories?
The current WikiTrademarks Expansion Score for KNIFE EDGE SEAL 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 KNIFE EDGE SEAL trademark filings?
Click the Watch Brand button at the top of this page to add KNIFE EDGE SEAL 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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