Prosperina Ventures LLC v. Keystone Technologies LLC: LED Patent Dispute Transferred to Eastern District of Pennsylvania
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📋 Case Summary
| Case Name | Prosperina Ventures LLC v. Keystone Technologies LLC |
| Case Number | 3:25-cv-02886 (TXND) |
| Initial Court | U.S. District Court for the Northern District of Texas |
| Transferred To | Eastern District of Pennsylvania |
| Duration (TXND) | Oct 2025 – Jan 2026 83 days |
| Outcome (TXND) | Venue Transferred |
| Patents at Issue | |
| Accused Products | Keystone Commercial LED Lighting Products (e.g., MR16, PAR-series, A23 HID, CFL Replacement) |
Case Overview
The Parties
⚖️ Plaintiff
Patent holder asserting a portfolio of six U.S. patents related to LED lighting technology, consistent with non-practicing entity (NPE) models.
🛡️ Defendant
Recognized commercial supplier of energy-efficient lighting solutions, including LED retrofit bulbs, CFL replacement products, and specialty lamps.
Patents at Issue
This action centers on six utility patents covering LED lighting technology, representing a substantial IP portfolio across LED lamp architectures, driver circuitry, thermal management, and retrofit configurations.
- • US9651239B2 (App. No. 14/699,227)
- • US9222659B2 (App. No. 13/943,152)
- • US9435528B2 (App. No. 14/254,390)
- • US9310030B2 (App. No. 12/901,405)
- • US9470882B2 (App. No. 13/093,085)
- • US10107487B2 (App. No. 14/718,262)
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The Verdict & Legal Analysis
Outcome
The Northern District of Texas case closed without adjudication on the merits. The court’s January 14, 2026 order grants the Agreed Motion to Transfer Venue and to Extend Time to Respond to the Complaint, transferring the action to the Eastern District of Pennsylvania pursuant to 28 U.S.C. § 1406(a). No damages were awarded, no injunctive relief was granted, and no claim construction or validity determinations were made in this jurisdiction.
Key Legal Issues
The transfer under § 1406(a) based on improper venue reflects an important threshold issue in patent litigation. Under TC Heartland LLC v. Kraft Foods Group Brands LLC (2017), domestic corporations may only be sued for patent infringement in districts where they are incorporated or have a regular and established place of business. The agreed nature of the motion is strategically significant, allowing both parties to avoid further procedural costs in an improper venue and proceed in a mutually acceptable forum like the Eastern District of Pennsylvania.
Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in commercial LED lighting. Choose your next step:
📋 Understand This Case’s Impact
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- View all 6 asserted patents in this technology space
- See which companies are most active in LED utility patents
- Understand claim construction patterns for LED driver/thermal patents
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High Risk Area
LED Retrofit Driver & Thermal Management
6 Patents Asserted
Targeting broad LED technologies
Strategic Options
Available for navigating LED patent landscape
✅ Key Takeaways
Venue remains a critical first-line defense in NPE patent actions; TC Heartland compliance must be verified at complaint drafting.
Search related case law →Agreed transfers under § 1406(a) can efficiently reposition cases without prejudicing either party, signaling an initial tactical misstep on venue.
Explore precedents →Frequently Asked Questions
Six U.S. patents: US9651239B2, US9222659B2, US9435528B2, US9310030B2, US9470882B2, and US10107487B2, all relating to LED lighting technologies.
The parties jointly agreed to transfer under 28 U.S.C. § 1406(a), citing improper venue in the Northern District of Texas, consistent with post-TC Heartland venue requirements for patent cases.
No. The transfer is procedural. Substantive infringement, validity, and damages issues will be litigated in the Eastern District of Pennsylvania.
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References
- PACER — Case No. 3:25-cv-02886 (TXND)
- USPTO Patent Full-Text Database
- Cornell Legal Information Institute — 28 U.S.C. § 1406(a)
- Supreme Court of the United States — TC Heartland LLC v. Kraft Foods Group Brands LLC
- PatSnap — IP Intelligence Solutions for Law Firms
This article is for informational purposes only and does not constitute legal advice. All case information is drawn from publicly available court records. For platform capabilities, visit PatSnap.