Lowell v. Lewis: Justice Story and the Minimal Utility Standard

Lowell v. Lewis, 15 F. Cas. 1018 (C.C.D. Mass. 1817) (No. 8,568), is one of the founding texts of American patent law. Decided at the May Term of 1817 by Justice Joseph Story, riding circuit in Massachusetts, it gave the utility requirement the shape it still holds two centuries later. In a jury charge that became doctrine, Story held that an invention is “useful” so long as it is not frivolous or injurious to the well-being, good policy, or sound morals of society. The degree of usefulness does not matter, and an invention need not be better than what came before. That minimal-utility principle is why utility so rarely defeats a patent today, and Story’s passing reference to “sound morals” seeded a moral-utility doctrine that governed for more than a century before fading.

At a glance

• Case: Lowell v. Lewis, 15 F. Cas. 1018 (C.C.D. Mass. 1817) (No. 8,568)
• Decided: May Term 1817; Justice Joseph Story, sitting as Circuit Justice
• Holding: “Useful” in the Patent Act means only that an invention is not frivolous or injurious to the well-being, good policy, or sound morals of society; the law does not require any particular degree of usefulness or superiority over existing devices.
• Outcome: Verdict for the defendant. Lowell won the utility argument but lost on whether the two pumps were substantially the same invention.
• Significance: The fountainhead of the minimal-utility standard and the origin of the moral-utility doctrine.

The statutory setting: utility in the early Republic

The Patent Act of 1793, drafted by Thomas Jefferson, granted patents for any “new and useful art, machine, manufacture, or composition of matter.” The word “useful” carried real weight in an era when the patent system was young and its boundaries untested. Did “useful” require that an invention outperform its rivals? Did it require proof of practical value? Did it license courts to sit in judgment on the social worth of an invention? Lowell v. Lewis answered all three questions, and its answers set the trajectory of the doctrine now codified in 35 U.S.C. § 101.

The dispute: two pumps

The case arose from competing pump patents. Jacob Perkins had obtained a patent for an improved pump and assigned his interest to Francis Cabot Lowell, the plaintiff and a leading figure of the early New England textile industry. The defendant, Winslow Lewis, was connected to a later patent for a similar pump. Lowell sued for infringement.

At trial the defense pressed a theory that would have made utility a demanding hurdle: that to be “useful,” Perkins’s pump had to be shown superior to pumps already in common use, and that the jury should weigh its practical merit. If accepted, that theory would have converted the utility requirement into a comparative contest over which invention worked best. Story rejected it.

Story’s jury charge: the minimal-utility rule

Instructing the jury, Story delivered the passage that made the case famous. The law, he explained, does not require that an invention be, in all cases, superior to the modes already in use for the same purpose. “All that the law requires is, that the invention should not be frivolous or injurious to the well-being, good policy, or sound morals of society. The word ‘useful,’ therefore, is incorporated into the act in contradistinction to mischievous or immoral.”

Two principles follow directly. First, utility is a low threshold, not a comparative judgment. An invention that works at all, in the sense of not being frivolous, satisfies the requirement even if a better device already exists. The market, Story reasoned, would sort out which inventions were worth using. If Perkins’s pump were worthless, the public would simply ignore it, and the patentee would gain nothing. There was no need for courts to police practical merit, because uselessness in the ordinary sense carried its own commercial punishment.

Second, the degree of usefulness is irrelevant to patentability. Story made explicit that the statute did not ask how useful an invention was, only that it not be mischievous or immoral. A slight improvement, a modest convenience, a marginally better tool, all satisfy the requirement. The comparative worth of the invention was a question for the marketplace and for damages, not for the threshold question of patentable utility.

Winning the utility point did not win the case. Story left the jury a separate question of fact, whether Baker’s round-shaft pump with its brass rim was substantially the same invention as Perkins’s square pump with triangular valves resting on the shaft sides, or merely a change of form. The jury returned a verdict for the defendant. The passage that outlived the litigation is the part Lowell won.

The seed of the moral-utility doctrine

Story’s phrase “injurious to the well-being, good policy, or sound morals of society” carried a second, longer-lived consequence. It framed utility not only as a floor but as a moral gate. An invention whose only use was to deceive, to defraud, to facilitate crime, or to corrupt public morals could be denied a patent as not “useful” in Story’s sense. Story offered illustrative examples of inventions that would fail the test on moral grounds, such as devices whose sole purpose was to poison people or promote debauchery.

From that language grew the moral-utility doctrine. For generations courts invoked it to refuse patents on gambling devices and on articles designed to deceive consumers, such as products made to imitate more expensive goods. The doctrine gave judges a lever to withhold patent protection from inventions they regarded as socially harmful, even when the inventions plainly worked.

What survived and what was buried

The two strands of Lowell v. Lewis have had very different fates. The minimal-utility principle triumphed completely. Under modern law, utility is almost never a serious obstacle for mechanical, electrical, or software inventions; an invention need only have some identifiable benefit that is not wholly frivolous. The requirement retains bite mainly in chemistry and biotechnology, where an applicant must disclose a specific, substantial, and credible utility, a demand refined in cases like Brenner v. Manson, 383 U.S. 519 (1966), and In re Brana, 51 F.3d 1560 (Fed. Cir. 1995). But the baseline that a slight, non-frivolous benefit suffices traces straight to Story.

The moral-utility doctrine, by contrast, has been buried. In Juicy Whip, Inc. v. Orange Bang, Inc., 185 F.3d 1364 (Fed. Cir. 1999), the Federal Circuit held that an invention is not unpatentable merely because it is designed to deceive consumers, in that case a beverage dispenser that displayed an attractive bowl of liquid to imitate a product actually mixed elsewhere. The court reasoned that policing deception is the province of other bodies, such as the Federal Trade Commission, not of the utility requirement. After Juicy Whip, the moral-utility doctrine is widely regarded as defunct. Story’s minimal-utility rule outlived the moral gate that shared its sentence.

Open questions

Even a settled doctrine leaves edges. The line between a specific, credible utility and a merely speculative one continues to be litigated in the life sciences, where the low mechanical bar does not translate cleanly. Whether any residue of moral utility could revive for genuinely dangerous or socially catastrophic technologies is debated in the academic literature, particularly as biotechnology and artificial intelligence raise novel harms. And the relationship between patent utility and other statutory gatekeepers, from § 101 subject-matter eligibility to regulatory approval regimes, remains an active area as courts sort out which doctrine should carry which weight.

Implications for inventors and businesses

• Expect utility to be a low bar for most inventions. Mechanical, electrical, and software inventions almost always satisfy utility if they do something non-trivial. Utility is rarely the battleground outside chemistry and biotech.
• Disclose a specific, credible use in the life sciences. For chemical and biological inventions, name a concrete practical use supported by data. The minimal standard of Lowell does not excuse a bare assertion of usefulness for a new compound.
• Do not rely on moral objections to defeat a rival’s patent. After Juicy Whip, arguing that an invention is deceptive or distasteful will not invalidate it for lack of utility. Challenges should target novelty, obviousness, enablement, or eligibility instead.
• Let the market judge merit. Story’s insight endures: a patent on a worthless invention is self-limiting, so validity does not turn on proving an invention is the best available.

Frequently asked questions

What is the utility standard from Lowell v. Lewis? Justice Story held that an invention is useful so long as it is not frivolous or injurious to the well-being, good policy, or sound morals of society. The law does not require the invention to be superior to existing devices, and the degree of usefulness is irrelevant to patentability. Even a slightly useful, non-mischievous invention qualifies.

What was the moral-utility doctrine and does it survive? The moral-utility doctrine, born in Story’s phrase about sound morals, allowed courts to deny patents to inventions deemed immoral or injurious, such as gambling or deceptive devices. It has since fallen into disuse. The Federal Circuit in Juicy Whip v. Orange Bang (1999) rejected the idea that deceptiveness defeats utility, effectively burying the doctrine.

Why does an 1817 circuit case still matter? Lowell v. Lewis is the fountainhead of American utility doctrine. Its minimal-usefulness principle is why the utility requirement under 35 U.S.C. Section 101 rarely defeats a mechanical or electrical patent today, and courts and the USPTO still trace the modern low bar back to Story’s formulation.

Authorities and sources

• Lowell v. Lewis, 15 F. Cas. 1018 (C.C.D. Mass. 1817) (No. 8,568), reporter scan at law.resource.org.
• Full text and analysis, Harvard Berkman Klein archive.
• UNCTAD case summary of Lowell v. Lewis, unctad.org.
• 35 U.S.C. § 101, utility and eligibility, Cornell LII.
• Juicy Whip, Inc. v. Orange Bang, Inc., 185 F.3d 1364 (Fed. Cir. 1999), rejecting moral-utility, reporter text at law.resource.org.
• Brenner v. Manson, 383 U.S. 519 (1966), the specific-utility requirement in chemistry, Cornell LII.