Opposition 91310225
PendingUSPTO
Opposition 91310225 at USPTO between Regeneron Pharmaceuticals, Inc. and Rachel Katherine Banta, over the mark ĒYLA, filed Sep 8, 2026. Status in the office record: pending.
- Status
- Pending
- Filed
- Sep 8, 2026
- Marks involved
- 9
Parties
Who is involved
The parties as named in the office record.
Respondent
Rachel Katherine Banta
Timeline
How the case has moved
Dates from the USPTO record and the ĒYLA filing.
ĒYLA filed
Application 99796191 filed at the USPTO.Opposition filed
Regeneron Pharmaceuticals, Inc. started opposition 91310225 at USPTO against ĒYLA.- Next
Awaiting decision
No decision is recorded at USPTO yet.
Marks
Marks involved
1 contested mark, 8 marks the challenger relies on.
| Mark | Role | Application | Office |
|---|---|---|---|
| ĒYLA | Contested | 99796191 | USPTO |
| EYLEA | Relied on | 77510978 | USPTO |
| EYLEA | Relied on | 85209921 | USPTO |
| EYLEA4U | Relied on | 85327081 | USPTO |
| EYLEA (AFLIBERCEPT) INJECTION 4U | Relied on | 85955455 | USPTO |
| EYLEA | Relied on | 87722615 | USPTO |
| EYLEA HD | Relied on | 97264271 | USPTO |
| EYLEA4U | Relied on | 97934364 | USPTO |
| EYLEA HD AHEAD | Relied on | 98542694 | USPTO |
API
Get this data via the API
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GET/v1/proceedings/{id}Parties, dates, outcome and every mark in the case
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GET /v1/proceedings/{id}
ID=prc_d2d5ddd7-ac16-499b-bcd1-7759441ee8b2
curl https://api.signa.so/v1/proceedings/$ID \
-H "Authorization: Bearer $SIGNA_API_KEY"Response
{
"id": "prc_d2d5ddd7-ac16-499b-bcd1-7759441ee8b2",
"object": "proceeding",
"proceeding_type": "opposition",
"proceeding_number": "91310225",
"status": "pending",
"office_code": "US",
"filed_date": "2026-09-08",
"parties": [
{
"name": "Regeneron Pharmaceuticals, Inc.",
"role": "opponent"
},
{
"name": "Rachel Katherine Banta",
"role": "respondent"
}
]
}