- See patent
WordReference Random House Unabridged Dictionary of American English © 2026
let′ters pat′ent, [Law.]
- Lawa written or printed instrument issued by a sovereign power, conferring upon a patentee some right, as the exclusive right to land or the exclusive right to make, use, and sell an invention for a limited time.
- Middle English 1350–1400
Collins Concise English Dictionary © HarperCollins Publishers::
letters patent pl n
'letters patent' also found in these entries (note: many are not synonyms or translations):