IP Verse

Stemco Products, Inc. v. Atro, LLC - 4:26-cv-00619

Stemco Products, Inc. v. Atro, LLC (Case No. 4:26-cv-00619), filed on Apr 27, 2026 in the District Court, E.D. Missouri involving patent infringement. This case involves patent infringement claims between the parties. Explore details about the litigants, key filings, and major docket updates.

Case Details

Case Number
4:26-cv-00619
Filing Date
Apr 27, 2026
Cause of Action
Patent Infringement
Status
-
Court
District Court, E.D. Missouri
Nature of Suit
Patent

Parties Involved

The following parties are involved in this case, with their respective legal representatives for the case.

NameRepresented By
Atro, LLC -
Stemco Products, Inc. -

Patents Involved

Patents not found - set an alert to get notified when patents are added.

Docket Entries

The Docket Entries section provides a chronological list of all significant filings and court actions in this case.

DateDocket EntryType

Set alerts for critical docket entry

Apr 27, 2026DISCLOSURE STATEMENT by Stemco Products, Inc., EnPro Holdings, Inc., EnPro Inc... (Telscher, Rudolph) (Entered: 04/27/2026)PACER Document
Apr 27, 2026COMPLAINT against defendant Atro, LLC with receipt number AMOEDC-11841948, in the amount of $405 Jury Demand,, filed by Stemco Products, Inc.. (Attachments: # 1 Exhibit 1 - US11396905, # 2 Exhibit 2 - USD853283, # 3 Exhibit 3 - USD862305, # 4 Exhibit 4 - '905 Patent Claim Chart, # 5 Civil Cover Sheet, # 6 Original Filing Form)(Telscher, Rudolph) (Entered: 04/27/2026)PACER Document
Apr 28, 2026NOTICE of Filing Deficiency re 1 Complaint,. In accordance with Eastern District of Missouri Local Rules and the Case Management/Electronic Case Filing (CM/ECF) Procedures Manual, a filing deficiency has been identified as follows: Notice of Process Server and Completed Summons or Request for Waiver of Service not filed. This deficiency must be filed in the case record immediately. (JWD) (Entered: 04/28/2026)PACER Document
Apr 29, 2026REPORT to Commissioner of filing or determination of an action regarding patent. (JWD) (Entered: 04/29/2026)PACER Document
Apr 29, 2026NOTICE OF PROCESS SERVER by Plaintiff Stemco Products, Inc. Process Server: Action Legal Process (Attachments: # 1 Summons)(Telscher, Rudolph) (Entered: 04/29/2026)PACER Document
Apr 29, 2026FINAL NOTICE of Filing Deficiency. The filing deficiency previously identified has not been corrected by the filing attorney. Case to proceed to judge assignment and further review by the Clerks Office Exec. Team. (JWD) (Entered: 04/29/2026)PACER Document
Apr 29, 2026Case Opening Notification. Judge Assigned: Honorable Maria A. Lanahan. Pursuant to Local Rule 2.09, every nongovernmental corporate party or nongovernmental corporation that seeks to intervene in any case, and every party or intervenor in an action in which jurisdiction is based upon diversity, must file a Disclosure Statement immediately upon entering its appearance in the case. Please complete and file the certificate as soon as possible. (moed-0001.pdf). (JWD)PACER Document