EXCELFRAX Trademark
EXCELFRAX is a USPTO trademark filed by UNIFRAX I LLC. Status: Registered.
Prosecution Summary
**Trademark Summary** The word mark **EXCELFRAX** is registered for microporous silica used in lining industrial ovens and furnaces, classified in International Class 017. The registration is **active and in force**, with the most recent renewal confirmed on February 20, 2026. The current owner is **UNIFRAX I LLC**, a Delaware limited liability company located in Tonawanda, New York. The mark was originally filed by The Carborundum Company on April 29, 1993, and has since changed hands multiple times through corporate restructurings and assignments. There are no active oppositions or legal proceedings noted in the record. **Recent Activity** The mark was published for opposition on November 29, 1994, and registered on December 12, 1995, after an amendment to use was filed. Most recently
Trademark Facts
| Mark | EXCELFRAX |
|---|---|
| Serial Number | 74386220 |
| Registration Number | 1941437 |
| Status | Registered |
| Filing Date | 1993-04-29 |
| Registration Date | 1995-12-12 |
| Mark Type | Word |
| Nice Classes | 017 (Rubber & Plastics) |
| Owner | UNIFRAX I LLC |
| Attorney of Record | Preetha Chakrabarti |
| Prosecution Events | 50 |
| Latest Event | RNL3 on 2026-02-20 |
Goods & Services
microporous silica for use in lining industrial ovens and furnaces