SATIUS HOLDING, LLC v. SAMSUNG ELECTRONICS CO., LTD.
Authored by: Jeremy J. Gustrowsky
A patent claim that covers something physically impossible is not necessarily unclear. But as Satius Holding learned, clarity will not save it. The Federal Circuit disagreed with a district court’s reasoning yet still wiped out the asserted claims, holding that a claim expressly reaching an impossible result cannot satisfy the enablement requirement of 35 U.S.C. § 112(a).
The case revolves around U.S. Patent No. 6,711,385, which describes a communications apparatus with a coupler that matches the characteristic impedance of the air to the impedance of a wireless transmitter and receiver. Satius sued Samsung in the District of Delaware in 2018 over claims 1, 11, and 18. The case was paused while the Patent and Trademark Office conducted reexamination proceedings, which rejected independent claim 1 but upheld dependent claims 11 and 18. Once the stay lifted, the district court turned to claim construction and concluded that all three claims were indefinite, entering final judgment of invalidity for Samsung.
The problem was in the opening words of claim 1, which recites “[a] communications apparatus for transmitting electric or electromagnetic signals over air.” Everyone agreed that sending a signal over air in electric form is scientifically impossible. Satius tried to read the phrase as describing an electric signal that gets converted into an electromagnetic signal before leaving the device, pointing to later claim language about “communicating the electric or electromagnetic signals to the air.” The Federal Circuit rejected that reading. Transmitting signals over the air is not the same as transmitting them to the air, and different terms in a claim are generally presumed to mean different things. Adopting Satius’s view would require writing a conversion step into the claim that simply is not there. Courts may not redraft claims to make them work or to rescue their validity.
Even so, the Federal Circuit held the district court got indefiniteness wrong. Impossibility and indefiniteness are not the same thing. There is no automatic rule that a claim covering inoperable embodiments is indefinite, and the court reiterated earlier precedent explaining that whether an invention actually works may say nothing about whether a skilled person understands the claim’s boundaries. The court distinguished its earlier Synchronoss decision, where the claims were both impossible and nonsensical in light of the specification. Here, the same impossible language appeared in both the claims and the written description, and neither Samsung nor the district court actually disputed that the scope of the phrase was clear. Samsung itself had argued that claim 1 “unmistakably claims” the impossibility. That is enough to satisfy the definiteness requirement, which demands reasonable certainty rather than absolute precision.
The victory was short lived. Samsung had also argued lack of enablement, an issue the district court flagged with skepticism but declined to decide, calling it waived and noting that claim construction is not usually the stage for such questions. The Federal Circuit decided to take it up anyway. Appellate courts have discretion to resolve issues not decided below, particularly where the question is purely legal, fully briefed by both sides, free of factual dispute, and where the outcome is beyond any doubt. Remanding would have accomplished nothing except to have the district court reach the same conclusion.
On the merits, the analysis was brief. Under the Supreme Court’s decision in Amgen v. Sanofi, a specification must enable the full scope of the claimed invention, and “the more one claims, the more one must enable.” A claim that expressly adds an inoperable alternative to its scope cannot meet that standard. Because claim 1 and its dependents plainly cover an apparatus for transmitting electric signals over air, something no skilled artisan can make or use, the claims fail § 112(a). The Federal Circuit affirmed the judgment of invalidity and awarded costs to Samsung.
The practical lesson for drafters is a familiar one with a new edge. Loose alternative language in a preamble, such as an “A or B” recitation where one option does not exist in the physical world, can be perfectly clear and still be fatal. Clarity is measured under § 112(b), but scope is policed under § 112(a), and a claim that says exactly what it means can be invalidated precisely because of it.