No Contestation of Validity. The Licensee acknowledges the validity of the Patents and copyright licensed hereunder and agrees not to contest such validity during the life of this Agreement, either directly or indirectly by assisting other parties. This clause is not operational under U.S. law.
Appears in 5 contracts
Samples: Confidentiality Agreement (Five Prime Therapeutics Inc), Technology License Agreement (Helix BioPharma Corp), Technology License Agreement (Helix BioPharma Corp)
