Socket Solutions v. Import Global — Faulty Claim Construction Knocks Out Wall-Outlet Injunction

Background

Socket Solutions owns a patent for an outlet cover that hides a wall receptacle while keeping it usable. After accusing Import Global’s Neat Socket product of infringing claim 19, Socket Solutions obtained a preliminary injunction barring manufacture, sale, use, offers for sale, and importation of the accused product.

The Court’s Holding

The Federal Circuit vacated the injunction. The district court’s constructions of “backplate” and “pin” were too broad and distorted the likelihood-of-success analysis. “Backplate” had to be construed in light of the claim language and patent drawings, while “pin” was a known structure entitled to its plain and ordinary meaning—not a purely functional definition covering anything that electrically connected wires and prongs.

The court also clarified that patent cases do not carry a presumption of irreparable harm after the Supreme Court’s eBay decision. That rule applies to preliminary as well as permanent injunctions. On remand, the district court must reassess likely infringement under the corrected constructions and, if necessary, evaluate irreparable harm without a presumption.

Key Takeaways

• A structural claim term cannot be expanded into an unlimited functional definition merely because the component performs a function.
• Patent-specific likelihood-of-success issues use Federal Circuit law even when regional-circuit law governs the overall injunction standard.
• Patent owners must prove irreparable harm with evidence; likely validity and infringement do not create a presumption.

Why It Matters

The precedential opinion gives accused infringers a strong reminder that preliminary relief depends on careful claim construction. It also squarely extends eBay’s rejection of presumed irreparable harm to the preliminary-injunction stage.