It is said in this record, although not distinctly shown, that the relator also held bonds of foreign corporations issued to it in payment for patent rights granted. We think that so much of the capital as was invested in such bonds was a basis of taxation here, under the act. Those bonds were presumably held at its office in this state, and such bonds, as well as all dioses im, action, unless kept, employed, or used outside of the state, have their situs at the domicile of the owner. The bonds took the place of the patent rights granted for their purchase. They were kept and held here to earn revenue for the relator, and they were, in a proper sense, employed here for that purpose.
The relator had granted to various corporations, within and without the state, rights to use its patents, and thus far it had disposed of its patents. But it retained its patents for use in territory not covered by the grants made, and the remaining question is, where were the patent rights not granted employed ? We think they were employed at the home office in this state. The main business of the relator was to perfect and protect its patents and to grant patent rights and to do whatever was needful and incident to that business; and that business was managed at and conducted from the home office, and its patents were kept and employed there in that business. A patent is an incorporeal right — a franchise, conferred by the sovereign power upon the patentee. It is personal to him, and until he is divested of the title thereto, like other personal rights, it attends his person and exists where he is or where he puts it to use. We are, therefore, of opinion that the comptroller did not err in including in the capital of the relator, to be estimated for taxation, its patents, so far as they had not been disposed of. {¡
It follows from these views that the order of the General Term should be reversed and that the determination of the comptroller should be reversed so far as it included for the purposes of taxation the stocks held by the relator in foreign corporations, and that the matter should be remitted to the comptroller to the end that he may readjust the tax in accord