Opinion · Court of Appeals for the Third Circuit

Benger Laboratories Ltd. v. R. K. Laros Co.

317 F.2d 455

Type
Opinion
Court
Court of Appeals for the Third Circuit
Jurisdiction
Federal
Date
1963-05-29
Topic
general

PER CURIAM. In this patent infringement suit Judge Kirkpatrick in a comprehensive, sound opinion1 held plaintiff’s patent to be valid, that its reissue was proper, that it had been infringed by defendant’s product and that its licensing arrangements did not violate the antitrust laws. The court found that plaintiff’s product claims 1 to 5 inclusive and 12 presented a new, unexpected and important result by using dextran as a complexing agent for ferric hydroxide for the purpose of safely injecting the product intramuscularly. It said: “That the admittedly old steps of the process would result in obtaining such a solution of dextran were the carbohydrate used could not but have been obvious to a skilled worker in the field, but that is all that was obvious. What was not obvious was that the solution produced would be intramuscularly injectable, and the discovery that it would have this unexpected and unpredictable property qualifies it as patentable.” See Application of Larsen, 292 F.2d 531 (C.C.P.A.1961). *456With respect to defendant’s contentions that plaintiff failed to state the best method of carrying out its invention and was not entitled to reissue of its patent, the trial court rightly concluded from the evidence as a whole that at the time of the American application there was a real question as to which was the best method; that there was sufficient disclosure, good faith and no concealment on the part of the plaintiff.

Citator

UpLaw has not yet analyzed Benger Laboratories Ltd. v. R. K. Laros Co.. The absence of a flag is not a finding that it is good law.

Authority status
pending
Cited by
8 opinions