O’Reilly Winship v. SnapRays: When Ordinary Meaning Changes Patent Infringement

Patent infringement disputes often turn less on the accused product as a whole than on the meaning of a few words in a claim. The Federal Circuit’s October 5, 2026 decision in O’Reilly Winship LLC v. SnapRays LLC is a useful example. The court reversed part of a summary judgment of noninfringement because the district court had effectively narrowed ordinary claim language too far, while affirming other noninfringement rulings where the accused structure merely had the capability to satisfy a limitation rather than being designed to do so.

The opinion is nonprecedential, so it does not bind future Federal Circuit panels. But it is valuable for patent owners and accused infringers because it shows how ordinary-language terms such as “joined,” “configured to,” and “sandwiched between” can produce materially different outcomes depending on the intrinsic record and the actual structure of the accused product.

A dispute over powered electrical cover plates

SnapRays, doing business as SnapPower, owns patents directed to powered electrical outlet and switch cover plates. The asserted patents were U.S. Patent Nos. 9,871,324 and 9,035,180. O’Reilly Winship LLC, doing business as OWL, sold competing lighted cover plates under the BriteOWL name.

After SnapPower sent demand letters and infringement notifications relating to OWL’s products, OWL filed a declaratory judgment action in the Northern District of Texas. SnapPower counterclaimed for infringement. The district court construed numerous disputed claim terms and later granted OWL summary judgment of noninfringement while denying SnapPower’s partial motion for summary judgment of infringement.

On appeal, the Federal Circuit reversed in part, affirmed in part, vacated in part, and remanded.

“Joined” meant what the claim language ordinarily said

The most important reversal involved claim 1 of the ’324 patent. That claim required a contact that was “joined to” a resilient strip and extended through an aperture in the strip. During claim construction, the district court had declined to adopt a special construction for “joined.” At summary judgment, however, it still concluded that the accused product’s contact was not “joined to” the resilient strip because the contact rested in a hole and was held in place by a separate rear cover.

The Federal Circuit disagreed. It looked to the specification and emphasized that the patent described a broad range of ways components could be attached or joined, including adhesive, welding, press fit, snap fit, and other techniques. That breadth did not support a narrow, unstated requirement that the contact be attached in some more direct or material-specific way.

Under the ordinary meaning of “joined,” the accused contact—resting in the spring-clip hole and held there by the rear cover—was joined to the resilient strip. The court therefore reversed summary judgment of noninfringement for several claims and instructed the district court to grant partial summary judgment of infringement on claims that SnapPower had specifically moved on.

For parties evaluating patent litigation, the lesson is practical: even when a court says no special construction is required, a later infringement analysis can still introduce an unstated narrowing concept. If that happens, the real appellate issue may be whether the ordinary meaning was silently changed at summary judgment.

Intrinsic evidence can broaden rather than narrow a term

The decision also reinforces a basic claim-construction principle. Patent specifications are important, but examples in the specification do not automatically limit claim language to those examples. In O’Reilly Winship, the variety of disclosed joining techniques showed breadth, not restriction.

That distinction matters when litigants cite embodiments from the specification. A disclosed example can support a proposed interpretation when the patent treats it as definitional or disclaims alternatives. But when the specification repeatedly presents multiple techniques or configurations, the stronger inference may be that the patentee intended the claim term to cover a range of implementations.

Patent owners should therefore be cautious about reading preferred embodiments as rigid boundaries. Accused infringers should be equally cautious about assuming that a structural difference from the drawings necessarily avoids infringement.

“Configured to” required design, not mere capability

SnapPower had less success with claim 11 of the ’180 patent. That claim required a portion of a spring clip “configured to contact” the wall of a receptacle box. The parties’ experts had agreed that “configured to” meant “designed to.”

The accused spring clips generally did not contact the walls of a standard receptacle box. SnapPower pointed to evidence that the clips could contact the wall in at least one narrower box. The Federal Circuit held that this was not enough. A product that is merely capable of making contact in an unusual or narrow configuration is not necessarily designed to make that contact.

The court therefore affirmed summary judgment of noninfringement on that limitation.

This is an important distinction in patent infringement analysis. Language such as “configured to” often requires more than proof that an accused product can perform the claimed function. The evidence may need to show that the product’s structure was actually designed, arranged, or adapted for that function.

For businesses assessing freedom to operate or enforcement risk, that means physical testing should focus not only on what an accused device can be made to do, but on what its structure objectively indicates it was intended or designed to do. Tucker Law’s patent practice addresses both patent prosecution and enforcement issues that can turn on those distinctions.

Claim mapping can lock a party into its own theory

The Federal Circuit also rejected one of SnapPower’s arguments concerning the ’180 patent because SnapPower had itself identified a particular wire in the accused product as the claimed “flexible conductive portion.” On appeal, SnapPower argued that the district court had focused on the wrong aspect of the structure. The panel was not persuaded because the district court had followed SnapPower’s own infringement mapping.

That is a litigation point with consequences beyond this case. Patent infringement contentions, expert reports, claim charts, and summary-judgment briefing are not merely descriptive. They define the theory the court will evaluate. A party that maps a limitation to one component may have difficulty later arguing that the claim should be analyzed against a different feature.

Careful claim charting at the beginning of a case can therefore affect appellate options years later. The safest approach is to identify alternative infringement theories expressly when the record supports them rather than assuming they can be introduced later.

Why ordinary words become high-stakes patent issues

O’Reilly Winship is a reminder that claim construction disputes are not limited to specialized technical vocabulary. Some of the most consequential fights involve everyday words: joined, connected, configured, between, adjacent, supported, mounted, or coupled.

Those terms can appear simple until they are applied to a real product. Then questions emerge. Does “joined” require direct attachment? Does “configured to” require design intent or merely capability? Does “sandwiched between” permit gaps? Does “connected” require electrical, mechanical, or physical contact?

The answers depend on the claim language, the specification, the prosecution history, and the legal framework governing claim construction. A court should not import limitations simply because one embodiment looks different from the accused product. At the same time, an accused product does not infringe merely because it can be manipulated into performing the claimed function.

The decision matters at both drafting and litigation stages

For patent prosecutors, the case underscores the value of using claim language consistently and drafting specifications that preserve intended breadth without creating accidental definitions. A patent drafter who lists multiple ways components may be “joined,” for example, can help show that the term was not meant to be limited to a single attachment technique.

For litigators, the case highlights three recurring tasks: separating genuine claim construction from factual infringement questions, resisting unstated limitations introduced during summary judgment, and building a claim chart that matches the actual infringement theory.

For companies facing patent demands or asserting patent rights, those issues should be evaluated early. By the time summary judgment arrives, weak claim mapping or an unnecessarily narrow litigation position can be difficult to repair.

Tucker Law represents clients in patent matters and can also serve as Florida patent litigation local counsel in federal patent cases. If a patent dispute turns on claim construction, infringement contentions, or summary-judgment strategy, contact Tucker Law to discuss the specific claims and accused technology.

This article provides general legal information and is not legal advice. Patent infringement and claim construction depend on the language of the specific patent, the intrinsic record, the accused product, and the procedural posture of the case.