comatose vs prepatent

comatose

adj
  • Drowsy or lethargic. 

  • In a coma: unconscious. 

  • Fast asleep. 

verb
  • To make comatose; to send into, or as if into, a coma. 

prepatent

adj
  • Before symptoms (especially of infection) become manifest. 

  • Prior to the existence of a legal patent. 

How often have the words comatose and prepatent occurred in a corpus of books? (source: Google Ngram Viewer )