Zhejiang Ledison Optoelectronics Co., Ltd. v. Shining Sunlight Group Limited
Infringement action filed 13 Apr 2026 in the United States District Court for the Northern District of Illinois and closed 17 Jun 2026, with US9261242B2 asserted. Recorded basis of termination: dismissed without prejudice.
Case record
- Patent involved
- US9261242B2
- Application no.
- US13/408936
- Case no.
- 1:26-cv-04059
- Verdict cause
- Infringement action
- Court
- N.D. Ill.
- Court level
- District Court
- Case region
- Illinois
- Chief judge
- Georgia N. Alexakis
- Trial level
- First instance
- Filed – Closed
- 13 Apr 2026 – 17 Jun 2026
- Duration
- 65 days
- Basis of termination
- Dismissed without Prejudice
- Products & marks
- LED light bulb and LED light-emitting strips being capable of emitting 4 π light
- Validity challenges
- 2 on record
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LED light bulb and LED light-emitting strip being capable of emitting 4TT light
The present invention discloses a LED light bulb, comprising: a LED light bulb shell; a core column with an exhaust tube and a bracket; at least one LED light emitting strip with LED chips therein emitting 4π light; a driver; and an electrical connector, wherein the LED light bulb shell is vacuum sealed with the core column so as to form a vacuum sealed chamber, which is filled with a gas having a low coefficient of viscosity and a high coefficient of thermal conductivity, the bracket and the LED light emitting strips fixed on the bracket are housed in the vacuum sealed chamber, the LED light emitting strip is in turn electrically connected to the driver, the electrical connector, while the electrical connector is used to be electrically connected to an external power supply, so as to light the LED light emitting strips. In addition, the present invention also provides the LED light emitting strips with LED chips emitting 4π light, as used in the LED light bulb.
- Legal status
- Active
- Granted
- 16 Feb 2016
- Earliest priority
- 8 Sep 2010
- Est. expiry
- 7 Dec 2032
- Validity challenges
- 2 on record90014182 · EPR90014210 · EPR · filed by NICK LO
- Licences recorded
- None recorded
- Inventors
- GE, SHICHAO · LIU, HUABIN · GE
- Classification
- F21V19/00F21K99/00F21V3/00F21V29/00F21Y101/02F21Y111/00F21Y103/00
- Prosecution counsel
- Davis Wright Tremaine LLP
- Examiner
- HOLLWEG, THOMAS A
Parties of record
Zhejiang Ledison Optoelectronics Co., Ltd.
- Core tech
- F21V19/00F21K99/00F21V3/00F21V29/00
- Counsel
- Chengchen Xu
- Firm
- Not recorded
Shining Sunlight Group Limited
- Core tech
- Not recorded
- Counsel
- Not recorded
- Firm
- Not recorded
Counsel of record
| Attorney | For | Role |
|---|---|---|
| Chengchen Xu | Zhejiang Ledison Optoelectronics Co., Ltd. | Plaintiff |
Basis of termination
From the record · verbatim“Pursuant to Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure, Plaintiff ZhejiangLedison Optoelectronics Co., Ltd. hereby dismisses without prejudice all causes of actionintheComplaint against Defendant Shining Sunlight Group Limited, d/b/a TJOY Lighting. Defendant has not filed an answer or a motion for summary judgment in this matter. Therefore, it is respectfully submitted that dismissal under Rule 41(a)(1)(A)(i) is appropriate.”
Case 1:26-cv-04059 · N.D. Ill. · closed 17 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-04059?
1:26-cv-04059 is a patent infringement action brought by Zhejiang Ledison Optoelectronics Co., Ltd. against Shining Sunlight Group Limited, filed on 13 Apr 2026 in the United States District Court for the Northern District of Illinois. The case closed on 17 June 2026.
Which patent was asserted in 1:26-cv-04059?
US9261242B2 (“LED light bulb and LED light-emitting strip being capable of emitting 4TT light”), assigned to ZHEJIANG LEDISON OPTOELECTRONICS CO. LTD., currently active. The record also lists LED light bulb and LED light-emitting strips being capable of emitting 4 π light.
How was case 1:26-cv-04059 terminated?
The recorded basis of termination is dismissed without prejudice. The termination text reads: “Pursuant to Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure, Plaintiff ZhejiangLedison Optoelectronics Co., Ltd. hereby dismisses without prejudice all causes of actionintheComplaint against Defendant Shining Sunlight Group Limited, d/b/a TJOY Lighting. Defendant has not filed an answer or a motion for summary judgment in this matter. Therefore, it is respectfully submitted that dismissal under Rule 41(a)(1)(A)(i) is appropriate.”
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-04059 take?
65 calendar days, from filing on 13 Apr 2026 to closure on 17 June 2026.
Who were the attorneys and the judge in 1:26-cv-04059?
Chief Judge Georgia N. Alexakis presided. Chengchen Xu is recorded as counsel for plaintiff Zhejiang Ledison Optoelectronics.
Disclaimer. This page reproduces publicly available court docket data for case 1:26-cv-04059 and is provided for general information and reference only. It is not legal advice and must not be relied upon as such.
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