unpatented

English

Etymology 1

From un- +‎ patented.

Adjective

unpatented (not comparable)

1. Not patented.

   Synonym: nonpatented

   • 2007 October 10, Celia W. Dugger, “In Africa, Prosperity From Seeds Falls Short”, in New York Times‎^[1]:

     Developed with financing from wealthy countries and private foundations, the New Rices for Africa, or Nericas, are unpatented and may be grown by anyone.

See also

• generic
• nonproprietary

Etymology 2

Verb

unpatented

1. simple past and past participle of unpatent