Lowell v. Lewis
Circuit Court, District of Massachusetts
15 F. Cas. 1018 (1817)
Relevant factsFree
Lowell (plaintiff) sued Lewis (defendant) for infringing his water-pump patent; Lewis held his own, later-issued water-pump patent and argued it was a distinct, significant improvement, while also arguing Lowell's patent was invalid for lacking novelty or usefulness.
IssueFree
Whether, in order for a patent to meet the usefulness requirement, an inventor must show that the patented product is superior to others in the field.
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