Double use
Definitions from Case Law · United States Supreme Court
Definitions from Case Law
From 52 U.S. 248 - Julia Hotchkiss Executrix of John Hotchkiss Deceased John Davenport and John Quincy v. Miles Greenwood · 1850Most cited · 797 citing opinions
patent
It is well settled, that a patent cannot be granted for a new use of the thing, or, as it is commonly stated, a double use. The application of an old machine to some new purpose is not the foundation of a patent; but an improvement of an old machine, in order to apply it to the same purposes more advantageously, is the subject of a patent.
How often courts cite the case defining “Double use”
Court decisions citing the opinion that defined “Double use” — 797 in all, by decade. Counts are citations to the defining case as a whole, not verified uses of the term. The dip in the most recent years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the latest years.