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Science & Tech Quote by John Bates Clark

"In a recent decision of the Supreme Court, not made, however, by the full court, and concurred in by only four justices, it was held that the seller of a patented mimeograph could bind the purchaser to use only his ink in the machine, though the ink was not patented"

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Clark is doing something economists do best when theyre at their sharpest: turning a dry procedural footnote into a warning flare about power. By stacking the qualifiers up front - not by the full court, only four justices - he frames the ruling as legally real but institutionally shaky, a decision with outsized consequences resting on a thin reed. Its an early version of what we now recognize as the problem of path dependence: a narrow opinion can harden into doctrine, and doctrine can become a business model.

The core outrage is the sleight of hand. A patent is supposed to be a limited monopoly on a specific invention. The Court, in Clark's telling, lets that monopoly leak sideways into an adjacent market - ink - that was never granted protection. The subtext is less about mimeographs than about tying arrangements: using control over one product to coerce purchases of another. Today we'd call it lock-in. Clark sees the legal system quietly authorizing it.

Context matters: this is the Progressive Era, when industrial consolidation and the trusts were forcing Americans to ask whether "freedom of contract" was just a nicer name for coercion when one side owned the chokepoint. Clark's phrasing is restrained, almost clinical, but the intent is pointed: if patents can be used to police unpatented consumables, then the boundary between innovation incentives and rent extraction collapses. The machine becomes an excuse to tax every refill.

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APA Style (7th ed.)
Clark, John Bates. (2026, January 15). In a recent decision of the Supreme Court, not made, however, by the full court, and concurred in by only four justices, it was held that the seller of a patented mimeograph could bind the purchaser to use only his ink in the machine, though the ink was not patented. FixQuotes. https://fixquotes.com/quotes/in-a-recent-decision-of-the-supreme-court-not-141865/

Chicago Style
Clark, John Bates. "In a recent decision of the Supreme Court, not made, however, by the full court, and concurred in by only four justices, it was held that the seller of a patented mimeograph could bind the purchaser to use only his ink in the machine, though the ink was not patented." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/in-a-recent-decision-of-the-supreme-court-not-141865/.

MLA Style (9th ed.)
"In a recent decision of the Supreme Court, not made, however, by the full court, and concurred in by only four justices, it was held that the seller of a patented mimeograph could bind the purchaser to use only his ink in the machine, though the ink was not patented." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/in-a-recent-decision-of-the-supreme-court-not-141865/. Accessed 12 Feb. 2026.

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John Bates Clark (January 26, 1847 - March 21, 1938) was a Economist from USA.

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