Opinion · Supreme Court of the United States

Haughey v. Lee

Haughey v. Lee, 151 U.S. 282 (1894)

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

UpLaw has not yet analyzed Haughey v. Lee. The absence of a flag is not a finding that it is good law.

Cited by
37 opinions

Headnotes

  1. Patent Law — Anticipation A patented device is not entitled to protection where, in view of the state of the art at the time of the patent, it exhibits no patentable novelty but is merely a useful improvement so obviously derived from what has gone before as not to amount to invention. 151 U.S. at 282
  2. Patent Law — Patentable Invention Once the field of invention has been mainly occupied, it becomes difficult to distinguish between improvements that involve patentable invention and those that are the product of ordinary mechanical knowledge and skill. 151 U.S. at 285
  3. Patent Law — Anticipation Adapting a known device — a loosely hung dependent striker used in other applications — to the new purpose of curing a horse's habit of interfering involves the exercise of no invention where such a pendant was previously in use and prior devices employing a stiff projecting striker would in time sag into the same mode of operation. 151 U.S. at 286
  4. Patent Law — Estoppel A defendant is not estopped from asserting the want of patentable novelty in a plaintiff's invention by the fact that the defendant had, through an employee, ineffectually sought a patent for substantially the same invention, because the defense of want of patentable invention operates not merely to exonerate the defendant but to relieve the public from an asserted monopoly. 151 U.S. at 287