Samuel Blatchford

“ It is said in the opinion in that case that when the patentee, or the person having his rights, sells a machine or instrument whose sole value is in its use, he receives the consideration for its use, and parts with the right to restrict that use; that the patentee, or his assignee, having in the act of sale received all the royalty or consideration which he claims for the use of his invention in that particular machine or instrument, it is open to the use of the purchaser, without further restriction on account of the monopoly of the patentee ”

“ It is easy for a patentee to protect himself and his assignees when he conveys exclusive rights under the patent for particular territory. He can take care to bind every licensee or assignee, if he gives him the right to sell articles made under the patent, by imposing conditions which will prevent any other licensee or assignee from being interfered with. ”

“ The authorities which are cited on the part of the plaintiffs, holding that where a person makes one element of a patented combination, with the intent that other persons shall supply the other elements, and thus complete the combination, he is guilty of infringement, because he contributes to it, establish a doctrine applicable to the case of a naked infringer. ”