Lone Star Document Management LLC v. Liberty Mutual Group, Inc.
Infringement action filed 15 May 2026 in the United States District Court for the Eastern District of Texas and closed 28 May 2026, with US6918082B1 asserted. Recorded basis of termination: dismissed with prejudice.
Case record
- Patent involved
- US6918082B1
- Application no.
- US09/215593
- Case no.
- 2:26-cv-00409
- Verdict cause
- Infringement action
- Court
- E.D. Tex.
- Court level
- District Court
- Case region
- Texas
- Chief judge
- Robert W. Schroeder III
- Trial level
- First instance
- Filed – Closed
- 15 May 2026 – 28 May 2026
- Duration
- 13 days
- Basis of termination
- Dismissed with Prejudice
- Products & marks
- The Safeco products and services
- Validity challenges
- 1 on record
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- 03Legal statusAcross 174 jurisdictions
Electronic document proofing system
A system is provided for proofing electronic documents delivered over a network. The system comprises a plurality of electronic documents in portable document file format, a computer connectable to the network for receiving the plurality of portable format documents together with at least one associated proofer identifier, a program executing on the computer for assigning a version number to each of the plurality of received portable format documents, and a database accessible by the computer for storing the documents and associated version numbers. The computer for receiving a request, from a proofer presenting the proofer identifier, to review a portable format electronic document, and the program for retrieving and formatting the requested document for display.
- Legal status
- Inactive
- Granted
- 12 Jul 2005
- Est. expiry
- 12 Nov 2020
- Validity challenges
- 1 on recordCBM2016-00005 · filed by Intralinks, Inc.
- Licences recorded
- None recorded
- Inventors
- GROSS, JEFFREY M. · PARKER, MATTHEW H.
- Classification
- G06F15/00G06F17/22G06F17/30G06Q10/00
- Prosecution counsel
- DARBY & DARBY P.C.
- Examiner
- FEILD, JOSEPH
Parties of record
Lone Star Document Management LLC
- Core tech
- G06F15/00G06F17/22G06F17/30G06Q10/00
- Counsel
- Timothy Devlin
- Firm
- Devlin Law Firm LLC (Wilmington)
Liberty Mutual Group, Inc.
- Core tech
- Not recorded
- Counsel
- Not recorded
- Firm
- Not recorded
Counsel of record
| Attorney | For | Role |
|---|---|---|
| Timothy Devlin | Lone Star Document Management LLC | Plaintiff |
Basis of termination
From the record · verbatim“Before the Court is Plaintiff Lone Star Document Management, LLC’s Notice of Voluntary Dismissal with Prejudice. Docket No. 5. Defendant has not yet answered the complaint. Id. After review, the notice (Docket No. 5) is ACCEPTED. Accordingly, it is ORDERED that Plaintiff’s claims are hereby DISMISSED WITH PREJUDICE pursuant to Fed. R. Civ. P. 41(a)(1)(A)(i). It is further ORDERED that any pending motions are DENIED-AS-MOOT”
Case 2:26-cv-00409 · E.D. Tex. · closed 28 May 2026
Related cases
Three questions this record usually leads to. Each one runs against the full litigation and patent corpus, and cites what it finds.
Frequently asked questions
What is case 2:26-cv-00409?
2:26-cv-00409 is a patent infringement action brought by Lone Star Document Management LLC against Liberty Mutual Group, Inc., filed on 15 May 2026 in the United States District Court for the Eastern District of Texas. The case closed on 28 May 2026.
Which patent was asserted in 2:26-cv-00409?
US6918082B1 (“Electronic document proofing system”), assigned to LONE STAR DOCUMENT MANAGEMENT, LLC, currently inactive. The record also lists The Safeco products and services.
How was case 2:26-cv-00409 terminated?
The recorded basis of termination is dismissed with prejudice. The termination text reads: “Before the Court is Plaintiff Lone Star Document Management, LLC’s Notice of Voluntary Dismissal with Prejudice. Docket No. 5. Defendant has not yet answered the complaint. Id. After review, the notice (Docket No. 5) is ACCEPTED. Accordingly, it is ORDERED that Plaintiff’s claims are hereby DISMISSED WITH PREJUDICE pursuant to Fed. R. Civ. P. 41(a)(1)(A)(i). It is further ORDERED that any pending motions are DENIED-AS-MOOT”
What does dismissal with prejudice mean?
A dismissal with prejudice permanently ends the claims that were filed, so the same claims cannot be brought again against that defendant. It is the usual form when the parties have settled.
How long did case 2:26-cv-00409 take?
13 calendar days, from filing on 15 May 2026 to closure on 28 May 2026.
Who were the attorneys and the judge in 2:26-cv-00409?
Chief Judge Robert W. Schroeder III presided. Timothy Devlin is recorded as counsel for plaintiff Lone Star Document Management.
Disclaimer. This page reproduces publicly available court docket data for case 2:26-cv-00409 and is provided for general information and reference only. It is not legal advice and must not be relied upon as such.
Docket data has limits. Records are drawn from a snapshot and may lag the live docket. Sealed filings, amended complaints, counterclaims and post-closure motions may not be reflected. Party names, attorney names and firm affiliations are reproduced as recorded and may contain omissions. Where a field is absent from the record, this page marks it as not recorded rather than inferring a value.
No characterisation of the parties or the outcome. This page reports what the record contains. Nothing here should be read as an assertion that any party infringed, that any patent is valid or invalid, that any settlement occurred, or that any party prevailed.
No FTO or validity opinion. Nothing on this page constitutes a freedom-to-operate, novelty, validity or infringement opinion. Any decision touching a live patent dispute should be verified independently and reviewed with qualified patent counsel.