Calgon Carbon Corporation
63 live US trademarks, filing since 1961.
Marks held on the register, by filing date. 2026 is year to date.
A multi-class mark counts once per class. Rank shown where the owner is in the class's top 50.
What Calgon Carbon Corporation filed most recently.
| Mark | Class | Filed | Basis | Status | Serial |
|---|---|---|---|---|---|
| WPC | 1 | May 14, 2025 | — | registered Dec 16 | 99185253 |
| GREENAMINE | 1 | Apr 17, 2024 | — | registered Sep 1 | 98504901 |
| AMERISORB | 1 | Mar 18, 2024 | — | pending | 98454037 |
| A AMERISORB | 1 | Mar 18, 2024 | — | pending | 98454041 |
| GOLD PLUS | 1 | Feb 21, 2024 | — | registered Dec 31 | 98414628 |
| AQUAKNIGHT | 11 | Jan 23, 2024 | — | pending | 98371518 |
| ELECTRAGUARD | 1 | Aug 16, 2023 | — | registered Jun 11 | 98135723 |
| CE ELECTRAGUARD | 1 | Aug 16, 2023 | — | registered Dec 31 | 98135734 |
| CALRES | 1 | May 3, 2023 | — | registered May 7 | 97919157 |
| PUREPAX | 5 | Apr 17, 2023 | — | registered Aug 20 | 97891522 |
Registration starts the maintenance clock: a Section 8 declaration is due between years 5 and 6.
A filing missed by the due date enters a six-month grace period, then the registration cancels.
About Calgon Carbon Corporation trademarks.
How many trademarks does Calgon Carbon Corporation have?
63 live US trademarks as of October 23, 2026: 60 registered and 3 pending applications. None have been filed in 2026 so far.
What does Calgon Carbon Corporation sell, according to its trademarks?
Mostly chemicals (Class 1, 48 live marks). Also appliances & lighting (Class 11) and electronics & software (Class 9).
Who owns the SGL trademark?
SGL is owned by Calgon Carbon Corporation. It was registered on August 7, 1962 (Reg. No. 0735533) and is live. The same owner holds 62 other live US marks.
When did Calgon Carbon Corporation first file a trademark?
Its oldest live US filing dates from 1961: SGL, filed September 28, 1961.
Know the morning after Calgon Carbon Corporation files.
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Data: USPTO trademark bulk files, processed nightly by Thorgate. Last rebuilt October 23, 2026. Counts cover the US federal register only, not state or foreign marks. Owner names are shown as recorded by the USPTO. This page reports public-record facts and dates and is not legal advice. For the official record of any mark, follow its serial number to USPTO TSDR.