Busch v. Jones
Headline: Bookbinding dry-press patent dispute: the Court reversed the Court of Appeals and remanded, treating the press as the core invention and rejecting an accounting based solely on the claimed process.
Holding: The Court reversed the Court of Appeals and remanded, holding the dry-press machine is the patent’s real invention and the separate process claim is merely the machine’s natural effect.
- Reopens the money judgment so lower courts can reassess damages and remedies.
- Limits separate process claims that are merely effects of a patented machine.
- Affirms that the press itself, not the tied-up method alone, is the core invention.
Summary
Background
An inventor named Jones obtained a patent for an improved bookbinder’s dry-press and a related method for treating folded printed sheets. A manufacturing company and a user of a similar machine were accused of infringing the patent. Lower courts found the patent valid and that the defendant had infringed, and an accounting (money for past use) was entered against the defendant.
Reasoning
The Court examined whether the patent covered both a new machine and a separate process and whether earlier presses or patents anticipated (already showed) Jones’s invention. The Court accepted the lower courts’ factual findings that the press itself was novel and not anticipated. But the Court explained that the claimed process — tying bundles under pressure and letting them remain tied to finish the pressing — is essentially the natural effect of the machine. Because the process depends on and flows from the press, it cannot be treated as an independent invention in the way the lower court relied on it for the accounting.
Real world impact
The Court reversed the Court of Appeals and remanded the case for further proceedings, instructing that the earlier accounting based on the separate process claim cannot stand without reconsideration. The ruling narrows the ability to claim a separate process patent when the alleged method is merely the direct effect of a patented machine, and it sends the dispute back to the lower courts to rework remedies and next steps.
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