Opinion · Supreme Court of the United States

Haughey v. Lee

14 S. Ct. 331

Type
Opinion
Court
Supreme Court of the United States
Jurisdiction
Federal
Date
1894-01-15
Topic
general

Mr. Justice Shiras delivered the opinion of the court. The bill of complaint alleged infringement of the complainant’s fights as grantee of letters patent, and the court below, upon issue joined and evidence taken, dismissed the bill for want of patentable novelty in the complainant’s invention. *283 The question thus presented for our consideration is the frequent and troublesome one, whether a given patented device evinces novelty or invention,- within the meaning of the law of patents, or is merely an improvement, useful perhaps, but so obviously a mere conclusion from what has gone before as not to be entitled to protection as an invention. In the history of most of the arts, the first - invention is of a striking and undeniable character; and the earlier improvements likewise usually display an unmistakable power of invention. But, after the field of invention has been mainly occupied, it becomes difficult to distinguish between improvements that involve patentable invention and those that are the result of the exercise of ordinary mechanical knowledge and skill.

Citator

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