Juanren Wu v. The Partnerships and Unincorporated Associations Identified on Schedule ‘A’
Infringement action filed 15 May 2026 in the United States District Court for the Northern District of Illinois and closed 1 Jun 2026, with USD1049230S asserted. Recorded basis of termination: voluntary dismissal.
Case record
- Patent involved
- USD1049230S
- Application no.
- US29/810565
- Case no.
- 1:26-cv-05682
- Verdict cause
- Infringement action
- Court
- N.D. Ill.
- Court level
- District Court
- Case region
- Illinois
- Chief judge
- Lindsay C. Jenkins
- Trial level
- First instance
- Filed – Closed
- 15 May 2026 – 1 Jun 2026
- Duration
- 17 days
- Basis of termination
- Voluntary dismissal
- Products & marks
- Painting pen tip
- Validity challenges
- None recorded
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Painting pen tip
- Legal status
- Active
- Granted
- 29 Oct 2024
- Est. expiry
- 29 Oct 2039
- Validity challenges
- None recorded
- Licences recorded
- None recorded
- Inventors
- WU, JUANREN
- Examiner
- SHIFLET, NICOLE C
Parties of record
Juanren Wu
- Core tech
- Not recorded
- Counsel
- William Jeffrey Hausman
- Firm
- Ford Banister, LLC
The Partnerships and Unincorporated Associations Identified on Schedule ‘A’
- Core tech
- Not recorded
- Counsel
- Not recorded
- Firm
- Not recorded
Counsel of record
| Attorney | For | Role |
|---|---|---|
| William Jeffrey Hausman | Juanren Wu | Plaintiff |
Basis of termination
From the record · verbatim“Pursuant to Rule 41(a)(1) of the Federal Rules of Civil Procedure, Plaintiff Juanren Wu hereby dismisses this action without prejudice against Defendant (No. 1) ANKE TOOL Store. With this dismissal, the case can be terminated.”
Case 1:26-cv-05682 · N.D. Ill. · closed 1 June 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 1:26-cv-05682?
1:26-cv-05682 is a patent infringement action brought by Juanren Wu against The Partnerships and Unincorporated Associations Identified on Schedule ‘A’, filed on 15 May 2026 in the United States District Court for the Northern District of Illinois. The case closed on 1 June 2026.
Which patent was asserted in 1:26-cv-05682?
USD1049230S (“Painting pen tip”), assigned to WU, JUANREN, currently active. The record also lists Painting pen tip.
How was case 1:26-cv-05682 terminated?
The recorded basis of termination is voluntary dismissal. The termination text reads: “Pursuant to Rule 41(a)(1) of the Federal Rules of Civil Procedure, Plaintiff Juanren Wu hereby dismisses this action without prejudice against Defendant (No. 1) ANKE TOOL Store. With this dismissal, the case can be terminated.”
What does dismissal without prejudice mean?
A dismissal without prejudice ends this action but leaves the claims alive — the plaintiff may file them again later, subject to the limitation period.
How long did case 1:26-cv-05682 take?
17 calendar days, from filing on 15 May 2026 to closure on 1 June 2026.
Who were the attorneys and the judge in 1:26-cv-05682?
Chief Judge Lindsay C. Jenkins presided. William Jeffrey Hausman is recorded as counsel for plaintiff Juanren Wu.
Disclaimer. This page reproduces publicly available court docket data for case 1:26-cv-05682 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.