PowerBlock Holdings, Inc. v. iFIT, Inc.

PowerBlock Holdings v. iFIT, decided August 11th, 2025. A precedential panel of the Federal Circuit, in an opinion by Judge Stoll, held that claims to a motorized adjustable dumbbell are not directed to an abstract idea. The claims recite a specific mechanical improvement, and the court refused to set aside their conventional parts merely because those parts appear in the prior art. The court reversed a dismissal under section 101. Here's the brief.

PowerBlock owns the ’771 patent, on selectorized dumbbells: dumbbells whose weight is changed by moving a selector that couples more or fewer weight plates to the handle. The specification explained the problem. Users had to set the selector by hand, a poorly engaged selector could let plates fall off during use, and each dumbbell had to be set separately.

PowerBlock sued iFIT for infringement. iFIT moved to dismiss under Rule 12(b)(6), arguing the claims were ineligible. The district court agreed as to claims 1 through 18 and 20. It held them directed to the abstract idea of automated weight stacking, implemented with generic components, with nothing significantly more. PowerBlock appealed.

The question was whether the claims are directed to an abstract idea at step one of the Supreme Court's framework in Alice.

At step one, a court considers the claims in their entirety, informed by the written description, to determine whether their character as a whole is directed to excluded subject matter.

If the claims are not directed to an abstract idea, they satisfy section 101, and the court need not reach step two.

The court held that claim 1 is not directed to an abstract idea. It is limited to a particular kind of dumbbell, with nested left and right plate stacks, a handle, and a movable selector. And it requires an electric motor connected to that selector that physically moves it into the position for the chosen weight.

iFIT argued the claim described only a function and a result. The court disagreed: in the context of a rather simple mechanical invention, the claim specifies how automated weight stacking is accomplished. The court distinguished University of Florida v. General Electric, a "do it on a computer" patent. And it distinguished Chamberlain v. Techtronic, where the claims recited wireless communication without reciting the garage door itself.

iFIT also urged the court to disregard the conventional dumbbell components because they existed in the prior art.

Citing Diamond v. Diehr, the court held that claims may not be dissected into old and new elements at step one. In a footnote, it cautioned parties and tribunals not to conflate novelty and obviousness with the step-one inquiry.

Because the parties did not argue the remaining claims separately, they rose with claim 1.

PowerBlock v. iFIT confirms that section 101 analysis at step one looks at the claim as a whole, including its conventional elements. A claim to a machine that recites how its parts produce the result, rather than the result alone, is not directed to an abstract idea, even when automation is the point of the invention. Questions about whether the claimed combination is new belong under sections 102 and 103, not section 101.

PowerBlock Holdings, Inc. v. iFIT, Inc., 146 F.4th 1366, decided August 11th, 2025. I'm Kyle Coleman. Thanks for watching.