OpenAI OpCo, LLC (P) vs Jason Dale Killmeyer (D)

Suspended
Oppositions

Proceeding Details

Proceeding Number

Filing Date

Dec 16, 2025

Last Status Update

Feb 27, 2026

Interlocutory Attorney

KATERINA D SPARER

Parties

Plaintiff

GPT-4
OpenAI OpCo, LLC

1801 EAST 6TH STREET, SUITE 300

AUSTIN, TX 78702

Attorney / Correspondent:

CHRISTOPHER M WEIMERPIRKEY BARBER PLLC

1801 EAST 6TH STREET, SUITE 300

AUSTIN, TX 78702

Marks:

GPT-4
Registered
|Reg #: 7232349|
S/N: 97836275
GPT-3
Registered
|Reg #: 6294671|
S/N: 90092493
VS

Defendant

CHATGPTEES
Jason Dale Killmeyer

721 MARIGOLD CT.

PRESTO, PA 15017

Attorney / Correspondent:

JASON DALE KILLMEYER

721 MARIGOLD CT.

PRESTO, PA 15017

Mark:

CHATGPTEES
Pending
S/N: 99103758

TTAB Documents

Title
Date
Entry #
Category
Code
Actions
NOTICE OF DEFAULT
Feb 27, 2026
4
Defaults
144
INSTITUTED
Dec 18, 2025
3
Status
128
NOTICE AND TRIAL DATES SENT; ANSWER DUE:
Dec 18, 2025
2
Scheduling
707
FILED AND FEE
Dec 16, 2025
1
Fees
124

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