Section 550. Negotiable notes given for patent rights

Notwithstanding
  article three of the uniform commercial code,  a  negotiable  promissory
  note,  the consideration of which consists wholly or partly of the right
  to make, use or sell any invention claimed or represented by the  vendor
  at  the time of sale to be patented, must contain the words "given for a
  patent right" prominently and legibly written or printed on the face  of
  such note above the signature thereto; and such note in the hands of any
  purchaser  or  holder is subject to the same defenses as in the hands of
  the original holder; but this section does not  apply  to  a  negotiable
  note  given  solely  for  the  purchase  price  or the use of a patented
  article.