Opinion · Supreme Court of the United States

Special Equipment Co. v. Coe

Special Equip. Co. v. Coe, 324 U.S. 370 (1945)

Type
Opinion
Court
Supreme Court of the United States
Jurisdiction
Federal
Date
1945-03-26
Topic
general

How later courts describe this case

  • reversing the rejection of a sub-combination claim directed to the previously claimed invention less one element
  • unpatented part of a combination patent may be appropriated by anyone

Citator

UpLaw has not yet analyzed Special Equipment Co. v. Coe. The absence of a flag is not a finding that it is good law.

Cited by
60 opinions

Headnotes

  1. Patent Law — Subcombination Claims A patent on a subcombination of the elements of a machine may legitimately be used as a means of preventing others from appropriating a combination invention that the claimant is using, where there is no purpose to enlarge the patent monopoly of either invention; a patent on the combination alone would not prevent free use of the subcombination, so denying the subcombination patent would deprive the inventor of the exclusive right to use the subcombination and would leave the public free to appropriate an essential part of the complete machine. 324 U.S. at 376
  2. Patent Law — Claims to Combinations and Subcombinations The patent statutes permit, and it is the settled practice of the Patent Office sustained by the courts, to allow claims both to a combination and to its subcombinations. 324 U.S. at 377
  3. Patent Law — Nature of the Patent Grant The patent grant is not a right of the patentee to use the invention, which he already possesses, but a grant of the exclusive right to make, use, and vend the invention — that is, a means of preventing others, except under license from the patentee, from appropriating his invention. 324 U.S. at 378
  4. Patent Law — Validity A patentee's failure to make use of a patented invention does not affect the validity of the patent. 324 U.S. at 378–79
  5. Patent Law — Antitrust — Misuse A patentee does not violate the antitrust laws merely by using his patent as a protection against misappropriation of his invention, even though the invention is not used; the misuse doctrine condemns only the use of a patent to enlarge its monopoly beyond the grant, for example by tying the use of an independent patented invention to the licensed invention. 324 U.S. at 379
  6. Patent Law — Intent to Use — Equitable Relief An inventor's intended use of a subcombination patent to prevent others from appropriating the subcombination and thereby appropriating an essential part of a complete machine he is using is not inconsistent with making other permissible uses of the subcombination patent, and absent record evidence of an intent to suppress the invention or to misuse the patent, there is no basis for withholding issuance of the patent. 324 U.S. at 379–80