Unifrax I LLC
55 live US trademarks, filing since 1951. The 27th largest trademark holder in Class 17 (rubber & plastics). 1 new application filed this year.
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 Unifrax I LLC filed most recently.
| Mark | Class | Filed | Basis | Status | Serial |
|---|---|---|---|---|---|
| ALKEGEL NOVA | 17 | Jan 29, 2026 | — | published | 99621805 |
| ALKEGEL FYRE | 17 | May 29, 2024 | — | published | 98574789 |
| ALKEGEL EMBER | 17 | May 1, 2024 | — | registered Mar 3 | 98529647 |
| ALKEGEL GLACIER | 17 | Apr 10, 2024 | — | registered Mar 31 | 98492682 |
| FLEXCAT DEFEND | 1 | Feb 23, 2023 | — | registered Dec 17 | 97808933 |
| RAPIDFIRE | 11 | Aug 4, 2022 | — | registered Feb 24 | 97534385 |
| ALKEGEL | 17 | May 12, 2022 | — | registered Apr 1 | 97407815 |
| ALKEGEN | 1, 7, 10, 16, 17, 19, 22, 24 | Nov 9, 2021 | — | registered Mar 17 | 97116322 |
| INOVION | 9 | Oct 20, 2021 | — | registered Feb 27 | 97084585 |
| INOVION | 9 | Oct 20, 2021 | — | registered Feb 27 | 97084602 |
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 Unifrax I LLC trademarks.
How many trademarks does Unifrax I LLC have?
55 live US trademarks as of October 23, 2026: 53 registered and 2 pending applications. 1 were filed in 2026 so far.
What does Unifrax I LLC sell, according to its trademarks?
Mostly rubber & plastics (Class 17, 39 live marks). Also building materials (Class 19) and chemicals (Class 1).
Who owns the FIBERFRAX trademark?
FIBERFRAX is owned by Unifrax I LLC. It was registered on December 9, 1952 (Reg. No. 0567698) and is live. The same owner holds 54 other live US marks.
When did Unifrax I LLC first file a trademark?
Its oldest live US filing dates from 1951: FIBERFRAX, filed June 21, 1951.
Know the morning after Unifrax I LLC files.
Watch this company in Thorgate and get an alert for every new application, registration, publication and lapse, with the opposition deadline already worked out. Or monitor your own marks for conflicts with theirs.
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.