Johns-Pratt Co. v. Economy Fuse & Mfg. Co.
This text of 216 F. 639 (Johns-Pratt Co. v. Economy Fuse & Mfg. Co.) is published on Counsel Stack Legal Research, covering District Court, E.D. Pennsylvania primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.
Opinion
The complaint of the plaintiff alleges an infringement of letters patent No. 660,341, dated October 23, 1900, issued to Joseph Sachs; the right of the inventor therein being now owned by the plaintiff. The letters patent were issued for an improvement in safety fuses for electrical use.
This history is to be traced in the following cases: Johns-Pratt Co. v. Sachs et al. (C. C.) 155 Fed. 129; Id. (C. C.) 168 Fed. 311; Id., 176 Fed. 70, 99 C. C. A. 92; Johns-Pratt Co. v. Freeman Co. (D. C.) 201 Fed. 356; Id., 204 Fed. 288, 122 C. C. A. 512; Johns-Pratt Co. v. Snow (D. C.) 212 Fed. 173; Id., 214 Fed. 110, 130 C. C. A. 484; and, finally, in this very case by the awarding of a preliminary injunction by Judge Thompson, of this district^ without reported opinion. This surely re[641]*641stricts, as already intimated, the present discussion to an inquiry into the sole question of whether the present record discloses any evidence which is not to be found in the record of the cases in which the plaintiff’s right was upheld. This evidence, to affect the decree, must be new, not only in the sense that it was not before introduced, but in the sense that the evidence is different.
The fact that an expert is now called, who did not before testify, who differs in opinion with the courts by -whom the former rulings were made as to the effect of the prior state of the art or prior use upon the inventive merits of the patent, can surely not affect the decree which should now be made. The fact, if it were the fact, that we were convinced the expert is right, cannot avail the defendant. A difference of ruling must be effected, not by a change in the conclusions or judgments which dictated the former rulings, but in the evidence commanding different findings of facts from those on which the former conclusions of law were based. 'This evidence must differ also in kind, as well as the means by which it is introduced. If, for illustration, a printed publication was before in evidence which described a device which, in the opinion of the court, was not an anticipation of the patent in suit, nothing new is introduced in a subsequent case by introducing another printed publication or a publication from another source describing the same device.
The best test of whether the evidence introduced in the present case is new in this sense is that applied in their treatment of the present case by the defendant’s experts in their testimony, and by counsel in their argument. Do they reargue the old questions upon the old evidence, or place their reliance upon the new ? None can read the testimony or follow the argument without being impressed with the thought that it is a review.
It would be interesting, but superfluous, to discuss the merit or lack of merit in the Sachs device. It has been judicially determined to be the product of invention, and the patent to be valid. This ends the inquiry, unless, as has been said, there is new evidence to justify different findings of fact, and these compel a different conclusion. The burden is upon the defendant to point out in what this evidence consists. Counsel has summarized it in six paragraphs. The chief use which has been made of it in the argument is to seek to rebut a collateral observation, by Judge Cross, in favor of the Sachs device, that up to that time there was no workable fuse on the market, and that it supplied the need of the'trade was evidenced by the sales made. None of this evidence disturbs the conclusion reached by the court. That it throws no light upon the prior use, as bearing upon the novelty issue, is shown by the fact that the stress of the argument here, as in the former cases, is borne by the Mordey patents. To give weight to this argument now is to assume to overrule the prior decisions, and to take from the plaintiff that which the courts have adjudged to belong to it.
A decree sustaining the validity of the patent may be submitted. The decree may cover the six claims, although No. 2 would seem to be sufficient to embrace the whole of plaintiff’s right.
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216 F. 639, 1914 U.S. Dist. LEXIS 1622, Counsel Stack Legal Research, https://law.counselstack.com/opinion/johns-pratt-co-v-economy-fuse-mfg-co-paed-1914.