E. I. du Pont de Nemours and Company
Trademark enforcement profile · on record 1963–2019
E. I. du Pont de Nemours and Company has filed federal trademark or copyright enforcement actions. On record (1963–2019): 25 federal trademark or copyright lawsuits; 173 oppositions and cancellation petitions at the USPTO Trademark Trial and Appeal Board (prevailed in 67% of merits decisions).
Data summary based on public records (USPTO TTAB proceedings and PACER/CourtListener federal court dockets). Figures reflect filings on record, not a characterization of the merits or good faith of any individual action. Not legal advice.
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Federal court filings
At the Trademark Trial and Appeal Board (TTAB)
Prevailed in 67% of proceedings the Board actually decided on the merits (settled and withdrawn proceedings excluded from this calculation).
Designs E. I. du Pont de Nemours and Company has opposed
Real trademark applications E. I. du Pont de Nemours and Company challenged at the USPTO — the kind of design that draws an opposition. If your artwork looks like one of these, expect pushback. Each links to its USPTO docket.
Source: USPTO Trademark Trial and Appeal Board records. “Prevailed” means E. I. du Pont de Nemours and Company got the outcome it sought; settled/withdrawn cases ended without a Board ruling on the merits. Images from public USPTO records.
Marks E. I. du Pont de Nemours and Company has asserted in proceedings
| Mark | Serial | Proceedings | Won / lost |
|---|---|---|---|
| TEFLONtext | 71479666 | 17 | 12 / 2 |
| DU PONT | 71150438 | 17 | 7 / 4 |
| DU PONT | 73016859 | 16 | 7 / 4 |
| DU PONT | 72007337 | 14 | 6 / 4 |
| DUPONT | 71612246 | 14 | 6 / 4 |
| DUPONT | 71516678 | 14 | 6 / 4 |
| DUPONT | 71419715 | 14 | 6 / 4 |
| DUPONT | 71413117 | 14 | 6 / 4 |
| DU PONT | 72251858 | 14 | 6 / 4 |
| DU PONT | 71148378 | 13 | 6 / 4 |
| DUPONT | 78541850 | 12 | 6 / 4 |
| DUPONTtext | 78351138 | 11 | 6 / 3 |
| DUPONTtext | 78461868 | 11 | 6 / 3 |
| DUPONTtext | 78299808 | 9 | 6 / 3 |
| ORLONtext | 71565323 | 8 | 4 / 3 |
| DU PONT | 75258655 | 8 | 3 / 3 |
| DUPONTtext | 77277757 | 7 | 2 / 3 |
| DUPONTtext | 77277939 | 7 | 2 / 3 |
| DUPONTtext | 77309503 | 7 | 2 / 3 |
| DUPONTtext | 77277764 | 7 | 2 / 3 |
| TEFLONtext | 71669317 | 6 | 3 / 0 |
| DUPONT | 78589192 | 4 | 3 / 1 |
| TEFLONtext | 73816109 | 4 | 3 / 0 |
| NOMEXtext | 72175261 | 4 | 2 / 1 |
| TEFLONtext | 74397613 | 4 | 4 / 0 |
| TEFLONtext | 71611080 | 4 | 2 / 1 |
| MYLARtext | 71616417 | 4 | 2 / 0 |
| HOLLOFILtext | 73111283 | 4 | 0 / 4 |
| TEFLONtext | 78479567 | 3 | 2 / 0 |
| TEFLONtext | 72257736 | 3 | 2 / 0 |
| TEFLONtext | 75392583 | 3 | 2 / 0 |
| TEFLONtext | 72049914 | 3 | 2 / 0 |
| CRONALITHtext | 72159050 | 3 | 3 / 0 |
| RISTONtext | 72290931 | 3 | 2 / 0 |
| TEFLONtext | 77451536 | 3 | 2 / 0 |
| TEFLONtext | 73174465 | 3 | 2 / 0 |
| KEVLARtext | 73607327 | 3 | 3 / 0 |
| COZAARtext | 74193404 | 2 | 1 / 0 |
| AMMATE | 71473180 | 2 | 0 / 1 |
| ELVAXtext | 72108118 | 2 | 1 / 1 |
| FASLOCtext | 73001824 | 2 | 2 / 0 |
| BIOMAXtext | 74077994 | 2 | 0 / 0 |
| TYNEX | 71653627 | 2 | 0 / 1 |
| PATTINAtext | 72141714 | 2 | 0 / 0 |
| CRONEXtext | 72126212 | 2 | 1 / 1 |
| SUPPLEX NYLONtext | 73538769 | 2 | 2 / 0 |
| TEDLARtext | 72112527 | 2 | 0 / 1 |
| SILVERSTONEtext | 73088817 | 2 | 0 / 1 |
| DU PONT | 72004622 | 2 | 0 / 1 |
| KEVLARtext | 75604727 | 2 | 2 / 0 |
| KEVLARtext | 75604730 | 2 | 2 / 0 |
| KEVLARtext | 74563671 | 2 | 2 / 0 |
| KEVLARtext | 72455206 | 2 | 2 / 0 |
| DUPONT | 72263164 | 2 | 0 / 1 |
| DISPOS-A-CANtext | 77542406 | 1 | 0 / 0 |
| MYLARtext | 81023264 | 1 | 1 / 0 |
| COMFORMAXtext | 74296804 | 1 | 1 / 0 |
| HYZAARtext | 74431110 | 1 | 1 / 0 |
| DU PONT | 72257912 | 1 | 1 / 0 |
| PERMASEPtext | 72248652 | 1 | 0 / 1 |
From public USPTO records. A mark is listed when it appears as a senior asserted mark in TTAB or federal-court proceedings on file. Serial links open the USPTO TSDR record.
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Data sources: publicly published USPTO Trademark Trial and Appeal Board proceedings (1951–2026, with possible gaps before electronic filing) and U.S. federal court dockets (PACER/CourtListener, nature-of-suit codes 840 and 820). Figures reflect filings on record and do not characterize the merits, validity, or legitimacy of any individual action by E. I. du Pont de Nemours and Company. Trademark holders have legal rights — and in some doctrines, an obligation — to enforce registered marks. This page does not provide legal advice; consult licensed counsel for case-specific questions. See the full leaderboard.