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  • Non-obviousness clarified
  • Argued October 14, 1965. Decided February 21, 1966

Petitioner: Graham - sues John Deere for patent infringement

Device: designed to absorb shock from plow shanks in rocky soil to prevent damage to the plow

  • 1955 - 5th circuit says valid - "old result in a cheaper and otherwise more advantageous way."
  • 1966 - 8th circuit says invalid - no new result in the combination

Held: The patents do not meet the test of the "nonobvious" nature of the "subject matter sought to be patented" to a person having ordinary skill in the pertinent art, set forth in 103 of the Patent Act of 1952, and are therefore invalid

Basically saying there isn't enough new here that wouldn't be obvious to ordinary-skilled worker in art to warrant patent.

1952 Act was intended to codify judicial precedents embracing the principle long ago [383 U.S. 1, 4] announced by this Court in Hotchkiss v. Greenwood

2 cases under consideration:

  • "Clamp for vibrating Shank Plows."
  • finger-operated sprayer with a "hold-down" cap

goes into history of patent law. Jefferson - no natural right to intellectual property, purpose of patent system is to encourage innovation, bring out new ideas, reward ppl for it. only for really new ideas, nothing trivial, obvious, etc.

  • "the things which are worth to the public the embarrassment [383 U.S. 1, 11] of an exclusive patent,"
  • 1851 in Hotchkiss v. Greenwood

"[U]nless more ingenuity and skill . . . were required . . . than were possessed by an ordinary mechanic acquainted with the business, there was an absence of that degree of skill and ingenuity which constitute essential elements of every invention. In other words, the improvement is the work of the skilful mechanic, not that of the inventor." At p. 267.